diff --git a/common/math.h b/common/math.h
index b85ec0d22a9..ba137101e4a 100644
--- a/common/math.h
+++ b/common/math.h
@@ -52,14 +52,6 @@
 #endif
 #endif
 
-#ifndef M_SQRT1_2
-	#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
-#endif
-
-#ifndef M_PI
-	#define M_PI 3.14159265358979323846
-#endif
-
 #ifndef FLT_MIN
 	#define FLT_MIN 1E-37
 #endif
diff --git a/common/scummsys.h b/common/scummsys.h
index 291de87dc92..aeffbbfcf37 100644
--- a/common/scummsys.h
+++ b/common/scummsys.h
@@ -144,6 +144,14 @@
 	#endif
 #endif
 
+#ifndef M_SQRT1_2
+	#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
+#endif
+
+#ifndef M_PI
+	#define M_PI 3.14159265358979323846
+#endif
+
 // Include our C++11 compatability header for pre-C++11 compilers.
 #if __cplusplus < 201103L
 #include "common/c++11-compat.h"