diff --git a/cocos/platform/linux/CCStdC-linux.h b/cocos/platform/linux/CCStdC-linux.h
index c1669fd09b..b92a9a0ec8 100644
--- a/cocos/platform/linux/CCStdC-linux.h
+++ b/cocos/platform/linux/CCStdC-linux.h
@@ -50,12 +50,6 @@ THE SOFTWARE.
 #define MAX(x,y) (((x) < (y)) ? (y) : (x))
 #endif  // MAX
 
-// some function linux do not have
-#define tanf tan
-#define sqrtf sqrt
-#define cosf cos
-#define sinf sin
-
 #endif // CC_TARGET_PLATFORM == CC_PLATFORM_LINUX
 
 #endif  // __CC_STD_C_H__
diff --git a/cocos/platform/tizen/CCStdC-tizen.h b/cocos/platform/tizen/CCStdC-tizen.h
index ae6c7cb563..60419686a0 100644
--- a/cocos/platform/tizen/CCStdC-tizen.h
+++ b/cocos/platform/tizen/CCStdC-tizen.h
@@ -49,12 +49,6 @@
 #define MAX(x,y) (((x) < (y)) ? (y) : (x))
 #endif  // MAX
 
-// some function linux do not have
-#define tanf tan
-#define sqrtf sqrt
-#define cosf cos
-#define sinf sin
-
 #endif // CC_TARGET_PLATFORM == CC_PLATFORM_TIZEN
 
 #endif  // __CC_STD_C_H__