1 files changed, 1 insertions, 1 deletions
diff --git a/src/xcb_util.c b/src/xcb_util.c
index a79296b..bd9f2b5 100644
--- a/src/xcb_util.c
+++ b/src/xcb_util.c
@@ -49,7 +49,7 @@ static const int error_connection = 1;
 
 int xcb_popcount(uint32_t mask)
 {
-    unsigned long y;
+    uint32_t y;
     y = (mask >> 1) & 033333333333;
     y = mask - y - ((y >> 1) & 033333333333);
     return ((y + (y >> 3)) & 030707070707) % 077;