diff --git a/vhook/imlib2.c b/vhook/imlib2.c
index cf55031b6e..eed6c236d2 100644
--- a/vhook/imlib2.c
+++ b/vhook/imlib2.c
@@ -165,7 +165,7 @@ int Configure(void **ctxp, int argc, char *argv[])
 
     /* Use ':' to split FONTPATH */
     if (fp)
-        while (p = strchr(fp, ':')) {
+        while ((p = strchr(fp, ':'))) {
             *p = 0;
             imlib_add_path_to_font_path(fp);
             fp = p + 1;