diff --git a/win/rfb_win32/CPointer.cxx b/win/rfb_win32/CPointer.cxx
index 3d0d934..2e9065f 100644
--- a/win/rfb_win32/CPointer.cxx
+++ b/win/rfb_win32/CPointer.cxx
@@ -54,7 +54,7 @@
 }
 
 
-inline abs(int x) {return x>0 ? x : 0;}
+inline int abs(int x) {return x>0 ? x : 0;}
 
 int emulate3Mask(int buttonMask) {
   // - Release left & right and press middle