diff --git a/cocoa.m b/cocoa.m
index f8c2e009a..0a95c7795 100644
--- a/cocoa.m
+++ b/cocoa.m
@@ -791,7 +791,7 @@ static int cocoa_keycode_to_qemu(int keycode)
     if(returnCode == NSCancelButton) {
         exit(0);
     } else if(returnCode == NSOKButton) {
-        char *bin = "qemu";
+        const char *bin = "qemu";
         char *img = (char*)[ [ sheet filename ] cStringUsingEncoding:NSASCIIStringEncoding];
 
         char **argv = (char**)malloc( sizeof(char*)*3 );