diff --git a/src/os_mac.c b/src/os_mac.c
index 0f6a76c..d38f12a 100644
--- a/src/os_mac.c
+++ b/src/os_mac.c
@@ -527,7 +527,7 @@
      */
     EventRecord theEvent;
 
-    if (EventAvail (keyDownMask, &theEvent))
+    if (EventAvail(keyDownMask, &theEvent))
 	if ((theEvent.message & charCodeMask) == Ctrl_C && ctrl_c_interrupts)
 	    got_int = TRUE;
 #if 0