diff --git a/compiler/src/dmd/typesem.d b/compiler/src/dmd/typesem.d
index 59f22fa77871..f0cf67380294 100644
--- a/compiler/src/dmd/typesem.d
+++ b/compiler/src/dmd/typesem.d
@@ -181,7 +181,7 @@ private void resolveHelper(TypeQualified mt, Loc loc, Scope* sc, Dsymbol s, Dsym
                      (id == Id._super && sc.getClassScope()))
                 error(loc, "undefined identifier `%s`, did you mean `typeof(%s)`?", p, p);
             else
-                error(loc, "undefined identifier `%s`", p);
+                error(mt.loc, "undefined identifier `%s`", p);
         }
         else {
             if (const n = cIncludeHint(id.toString()))
diff --git a/compiler/test/fail_compilation/fix21165.d b/compiler/test/fail_compilation/fix21165.d
new file mode 100644
index 000000000000..ad8f586d9eb3
--- /dev/null
+++ b/compiler/test/fail_compilation/fix21165.d
@@ -0,0 +1,10 @@
+/*
+TEST_OUTPUT:
+---
+fail_compilation/fix21165.d(9): Error: undefined identifier `foo`
+---
+*/
+
+// Test case from Issue #21165
+foo
+f() {}