diff --git a/index.js b/index.js
index b95aa04..c9c9bb2 100644
--- a/index.js
+++ b/index.js
@@ -29,10 +29,14 @@ module.exports.decDeg2Hms = function(dec, round) {
 module.exports.raHms2Deg = function(ra, round) {
   var parts = ra.split(':')
   var sign = 1
+  if (ra.toString()[0] === '-')
+  {
+    sign = -1
+  }
   var h = parseFloat(parts[0])
   var m = parseFloat(parts[1])
   var s = parseFloat(parts[2])
-  if (h.toString()[0] === '-') {
+  if (h.toString()[0] === '-' || sign == -1) {
     sign = -1
     h = Math.abs(h)
   }
@@ -45,10 +49,14 @@ module.exports.raHms2Deg = function(ra, round) {
 module.exports.decHms2Deg = function(dec, round) {
   var parts = dec.split(':')
   var sign = 1
+  if (dec.toString()[0] === '-')
+  {
+    sign = -1
+  }
   var d = parseFloat(parts[0])
   var m = parseFloat(parts[1])
   var s = parseFloat(parts[2])
-  if (d.toString()[0] === '-') {
+  if (d.toString()[0] === '-' || sign == -1) {
     sign = -1
     d = Math.abs(d)
   }
@@ -56,4 +64,4 @@ module.exports.decHms2Deg = function(dec, round) {
   if (round) sDeg = Math.floor(sDeg)
   var deg = d + (m / 60) + sDeg
   return deg * sign
-}
\ No newline at end of file
+}