diff --git a/Include/Python.h b/Include/Python.h
index 051deae..17d3d5c 100644
--- a/Include/Python.h
+++ b/Include/Python.h
@@ -141,7 +141,7 @@
 #endif
 
 /* Argument must be a char or an int in [-128, 127] or [0, 255]. */
-#define Py_CHARMASK(c)		((unsigned char)((c) & 0xff))
+#define Py_CHARMASK(c) ((unsigned char)((c) & 0xff))
 
 #include "pyfpe.h"