diff --git a/misc/tools/xonotic-map-compiler b/misc/tools/xonotic-map-compiler
index 9ae0cec..4f8c838 100755
--- a/misc/tools/xonotic-map-compiler
+++ b/misc/tools/xonotic-map-compiler
@@ -186,11 +186,12 @@ sub q3map2(@)
 		local $SIG{ALRM} = sub { kill $pid; };
 		alarm $timeout
 			if $timeout;
-		if(waitpid $pid, 0 != $pid)
+		if(waitpid($pid, 0) != $pid)
 		{
 			die "waitpid: did not return our child process $pid: $!";
 		}
-		return !$?;
+		alarm 0;
+		return $? == 0;
 	}
 	else # child
 	{