1 files changed, 2 insertions, 1 deletions
diff --git a/gwm.c b/gwm.c
index 7246679..ba30d72 100644
--- a/gwm.c
+++ b/gwm.c
@@ -25,6 +25,7 @@
 
 #include <assert.h>
 #include <errno.h>
+#include <limits.h>
 #if HAVE_MCHECK_H
 #include <mcheck.h>
 #endif
@@ -264,7 +265,7 @@ static void check_async_callbacks( void ) {
 
 extern void sync_with_callback( unsigned int sequence ) {
 
-    while( queue_head && (int) sequence - (int) queue_head->sequence >= 0 ) {
+    while( queue_head && sequence - queue_head->sequence < UINT_MAX >> 1 ) {
 	struct async_callback *entry = queue_head;
 	xcb_generic_error_t *error;
 	void *reply = xcb_wait_for_reply( c, entry->sequence, &error );