diff --git a/stepmania/src/archutils/Darwin/Vsync.cpp b/stepmania/src/archutils/Darwin/Vsync.cpp
index 1e58341f3d..5485e67485 100644
--- a/stepmania/src/archutils/Darwin/Vsync.cpp
+++ b/stepmania/src/archutils/Darwin/Vsync.cpp
@@ -15,5 +15,5 @@ bool wglSwapIntervalEXT(int swapInterval)
 {
     /* I really have no idea what the expected return value for success. If it was an int
     * I would return 0, since it is a bool, I'm going to guess that true is success. */
-    return !CGLSetParameter(CGLGetCurrentContext(), kCGLCPSwapInterval, &long(swapInterval));
+    return !CGLSetParameter(CGLGetCurrentContext(), kCGLCPSwapInterval, &(long(swapInterval)));
 }