diff --git a/Demos/OpenGL/DemoApplication.cpp b/Demos/OpenGL/DemoApplication.cpp
index 2e6ae56cc..8b07cf91f 100644
--- a/Demos/OpenGL/DemoApplication.cpp
+++ b/Demos/OpenGL/DemoApplication.cpp
@@ -304,6 +304,7 @@ void DemoApplication::reshape(int w, int h)
 }
 
 
+
 void DemoApplication::keyboardCallback(unsigned char key, int x, int y)
 {
 	(void)x;
diff --git a/Extras/Serialize/BulletFileLoader/btBulletFile.cpp b/Extras/Serialize/BulletFileLoader/btBulletFile.cpp
index 44acc0d3c..69b3e2e50 100644
--- a/Extras/Serialize/BulletFileLoader/btBulletFile.cpp
+++ b/Extras/Serialize/BulletFileLoader/btBulletFile.cpp
@@ -26,17 +26,17 @@ subject to the following restrictions:
 // 32 && 64 bit versions
 #ifdef BT_INTERNAL_UPDATE_SERIALIZATION_STRUCTURES
 #ifdef _WIN64
-extern unsigned char sBulletDNAstr64[];
+extern char sBulletDNAstr64[];
 extern int sBulletDNAlen64;
 #else
-extern unsigned char sBulletDNAstr[];
+extern char sBulletDNAstr[];
 extern int sBulletDNAlen;
 #endif //_WIN64
 #else//BT_INTERNAL_UPDATE_SERIALIZATION_STRUCTURES
 
-extern unsigned char sBulletDNAstr64[];
+extern char sBulletDNAstr64[];
 extern int sBulletDNAlen64;
-extern unsigned char sBulletDNAstr[];
+extern char sBulletDNAstr[];
 extern int sBulletDNAlen;
 
 #endif //BT_INTERNAL_UPDATE_SERIALIZATION_STRUCTURES
diff --git a/src/LinearMath/btSerializer.cpp b/src/LinearMath/btSerializer.cpp
index 9ed121925..49c25b7ea 100644
--- a/src/LinearMath/btSerializer.cpp
+++ b/src/LinearMath/btSerializer.cpp
@@ -1,4 +1,4 @@
-unsigned char sBulletDNAstr[]= {
+char sBulletDNAstr[]= {
 83,68,78,65,78,65,77,69,44,1,0,0,109,95,115,105,122,101,0,109,
 95,99,97,112,97,99,105,116,121,0,42,109,95,100,97,116,97,0,109,95,
 99,111,108,108,105,115,105,111,110,83,104,97,112,101,115,0,109,95,99,111,
@@ -419,7 +419,7 @@ unsigned char sBulletDNAstr[]= {
 };
 int sBulletDNAlen= sizeof(sBulletDNAstr);
 
-unsigned char sBulletDNAstr64[]= {
+ char sBulletDNAstr64[]= {
 83,68,78,65,78,65,77,69,44,1,0,0,109,95,115,105,122,101,0,109,
 95,99,97,112,97,99,105,116,121,0,42,109,95,100,97,116,97,0,109,95,
 99,111,108,108,105,115,105,111,110,83,104,97,112,101,115,0,109,95,99,111,
diff --git a/src/LinearMath/btSerializer.h b/src/LinearMath/btSerializer.h
index 3c64f6bdf..7d90ad20a 100644
--- a/src/LinearMath/btSerializer.h
+++ b/src/LinearMath/btSerializer.h
@@ -28,9 +28,9 @@ subject to the following restrictions:
 
 
 ///only the 32bit versions for now
-extern unsigned char sBulletDNAstr[];
+extern char sBulletDNAstr[];
 extern int sBulletDNAlen;
-extern unsigned char sBulletDNAstr64[];
+extern char sBulletDNAstr64[];
 extern int sBulletDNAlen64;
 
 SIMD_FORCE_INLINE	int btStrLen(const char* str)