diff --git a/LMAlertView/LMAlertView.m b/LMAlertView/LMAlertView.m
index 2ad40d3..dd65982 100644
--- a/LMAlertView/LMAlertView.m
+++ b/LMAlertView/LMAlertView.m
@@ -10,6 +10,7 @@
 #import "LMEmbeddedViewController.h"
 #import "LMModalItemTableViewCell.h"
 #import <CAAnimation+Blocks.h>
+#import "UIDevice+SystemVersionNumber.h"
 
 @interface LMAlertView ()
 
@@ -114,7 +115,9 @@ - (void)setButtonsShouldStack:(BOOL)buttonsShouldStack
 - (void)setTintColor:(UIColor *)tintColor
 {
 	_tintColor = tintColor;
-	self.window.tintColor = tintColor;
+    
+    if([UIDevice currentDevice].systemVersionNumber >= 7.0)
+        self.window.tintColor = tintColor;
 }
 
 - (id)initWithTitle:(NSString *)title message:(NSString *)message delegate:(id)delegate cancelButtonTitle:(NSString *)cancelButtonTitle otherButtonTitles:(NSString *)otherButtonTitles, ...
@@ -430,7 +433,8 @@ - (void)show
 	
 	// You can have more than one UIWindow in the view hierachy, which is how UIAlertView works
 	self.window = [[UIWindow alloc] initWithFrame:[appDelegate window].frame];
-	self.window.tintColor = self.tintColor;
+    if([UIDevice currentDevice].systemVersionNumber >= 7.0)
+        self.window.tintColor = self.tintColor;
 	
 	LMEmbeddedViewController *viewController = [[LMEmbeddedViewController alloc] init];
 	viewController.alertView = self;
diff --git a/LMAlertView/UIDevice+SystemVersionNumber.h b/LMAlertView/UIDevice+SystemVersionNumber.h
new file mode 100644
index 0000000..ebc205d
--- /dev/null
+++ b/LMAlertView/UIDevice+SystemVersionNumber.h
@@ -0,0 +1,14 @@
+//
+//  UIDevice+SystemVersionNumber.h
+//  LMAlertViewDemo
+//
+//  Created by Lin Cheng Kai on 14/4/24.
+//  Copyright (c) 2014年 Bestir Ltd. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+@interface UIDevice (SystemVersionNumber)
+@property (nonatomic, readonly) float systemVersionNumber;
+
+@end
diff --git a/LMAlertView/UIDevice+SystemVersionNumber.m b/LMAlertView/UIDevice+SystemVersionNumber.m
new file mode 100644
index 0000000..76e1204
--- /dev/null
+++ b/LMAlertView/UIDevice+SystemVersionNumber.m
@@ -0,0 +1,33 @@
+//
+//  UIDevice+SystemVersionNumber.m
+//  LMAlertViewDemo
+//
+//  Created by Lin Cheng Kai on 14/4/24.
+//  Copyright (c) 2014年 Bestir Ltd. All rights reserved.
+//
+
+#import "UIDevice+SystemVersionNumber.h"
+#import <objc/runtime.h>
+
+const char SYS_VER_NUM_KEY;
+@implementation UIDevice (SystemVersionNumber)
+- (float)systemVersionNumber
+{
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        NSString *sysVer = [UIDevice currentDevice].systemVersion;
+        NSError *error = nil;
+        NSRegularExpression *regexp =[NSRegularExpression regularExpressionWithPattern:@"\\d.\\d" options:0 error:&error];
+        NSTextCheckingResult *result = [regexp firstMatchInString:sysVer options:0 range:NSMakeRange(0, [sysVer length])];
+        
+        NSNumberFormatter *numFormatter = [[NSNumberFormatter alloc] init];
+        numFormatter.numberStyle = NSNumberFormatterDecimalStyle;
+        NSNumber *versionNumber = [numFormatter numberFromString:[sysVer substringWithRange:result.range]];
+        
+        objc_setAssociatedObject(self, &SYS_VER_NUM_KEY, versionNumber, OBJC_ASSOCIATION_ASSIGN);
+    });
+    
+    NSNumber *sysVerNum = objc_getAssociatedObject(self, &SYS_VER_NUM_KEY);
+    return [sysVerNum floatValue];
+}
+@end
diff --git a/LMAlertViewDemo.xcodeproj/project.pbxproj b/LMAlertViewDemo.xcodeproj/project.pbxproj
index 5bacd19..692bcb5 100644
--- a/LMAlertViewDemo.xcodeproj/project.pbxproj
+++ b/LMAlertViewDemo.xcodeproj/project.pbxproj
@@ -27,6 +27,7 @@
 		16CCDFA91853296D0059DE8B /* LMTwitterLocationViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 16CCDFA81853296D0059DE8B /* LMTwitterLocationViewController.m */; };
 		16CCDFAC18544C6F0059DE8B /* LMNavigationController.m in Sources */ = {isa = PBXBuildFile; fileRef = 16CCDFAB18544C6F0059DE8B /* LMNavigationController.m */; };
 		16CCDFD2185832520059DE8B /* LMModalItemTableViewCell.m in Sources */ = {isa = PBXBuildFile; fileRef = 16CCDFD1185832520059DE8B /* LMModalItemTableViewCell.m */; };
+		984508EE19090DFA0017DE75 /* UIDevice+SystemVersionNumber.m in Sources */ = {isa = PBXBuildFile; fileRef = 984508ED19090DFA0017DE75 /* UIDevice+SystemVersionNumber.m */; };
 		E017F5E695B446B2B1B5314D /* libPods.a in Frameworks */ = {isa = PBXBuildFile; fileRef = B6ABB7B0B6944B929C0CFAFE /* libPods.a */; };
 /* End PBXBuildFile section */
 
@@ -67,6 +68,8 @@
 		16CCDFD0185832520059DE8B /* LMModalItemTableViewCell.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = LMModalItemTableViewCell.h; path = ../LMAlertView/LMModalItemTableViewCell.h; sourceTree = "<group>"; };
 		16CCDFD1185832520059DE8B /* LMModalItemTableViewCell.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = LMModalItemTableViewCell.m; path = ../LMAlertView/LMModalItemTableViewCell.m; sourceTree = "<group>"; };
 		1FE7E8F0E7304B2287950B17 /* Pods.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = Pods.xcconfig; path = Pods/Pods.xcconfig; sourceTree = SOURCE_ROOT; };
+		984508EC19090DFA0017DE75 /* UIDevice+SystemVersionNumber.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = "UIDevice+SystemVersionNumber.h"; path = "LMAlertView/UIDevice+SystemVersionNumber.h"; sourceTree = SOURCE_ROOT; };
+		984508ED19090DFA0017DE75 /* UIDevice+SystemVersionNumber.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = "UIDevice+SystemVersionNumber.m"; path = "LMAlertView/UIDevice+SystemVersionNumber.m"; sourceTree = SOURCE_ROOT; };
 		B6ABB7B0B6944B929C0CFAFE /* libPods.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = libPods.a; sourceTree = BUILT_PRODUCTS_DIR; };
 /* End PBXFileReference section */
 
@@ -173,6 +176,8 @@
 				16CCDFAA18544C6F0059DE8B /* LMNavigationController.h */,
 				16CCDFAB18544C6F0059DE8B /* LMNavigationController.m */,
 				169103CD183311F3003DF9E6 /* Radial.png */,
+				984508EC19090DFA0017DE75 /* UIDevice+SystemVersionNumber.h */,
+				984508ED19090DFA0017DE75 /* UIDevice+SystemVersionNumber.m */,
 			);
 			name = LMAlertView;
 			path = LMAlertViewDemo;
@@ -285,6 +290,7 @@
 				16CCDFAC18544C6F0059DE8B /* LMNavigationController.m in Sources */,
 				16CCDFA91853296D0059DE8B /* LMTwitterLocationViewController.m in Sources */,
 				16B47FC7183A33E800A06371 /* CALayer+ModalAlert.m in Sources */,
+				984508EE19090DFA0017DE75 /* UIDevice+SystemVersionNumber.m in Sources */,
 				16CCDFD2185832520059DE8B /* LMModalItemTableViewCell.m in Sources */,
 				165F9F781831632C00037E82 /* main.m in Sources */,
 				165F9F7C1831632C00037E82 /* LMAppDelegate.m in Sources */,
diff --git a/Podfile.lock b/Podfile.lock
index 88b5970..c2ec018 100644
--- a/Podfile.lock
+++ b/Podfile.lock
@@ -15,9 +15,9 @@ EXTERNAL SOURCES:
     :git: https://github.com/lmcd/LMFixedTextView.git
 
 SPEC CHECKSUMS:
-  CAAnimationBlocks: b70f877c5b92734abef270152187d3287d84e8f8
-  EDStarRating: 6761f41fd040f1cde155e2885dddc96461620f67
+  CAAnimationBlocks: 0b18c88fcdffc0b8bb5e4c2ef57096f85119bb4d
+  EDStarRating: 4954b62647884e7b2d37c4720d4a1f758b5a3435
   LMFixedTextView: 794f1423096e30f88a856ef49a791af08e5c6efe
   RBBAnimation: e7f31ed62f760f3caf120b5d943267bd9a8e1f64
 
-COCOAPODS: 0.28.0
+COCOAPODS: 0.32.1