diff --git a/src/stick_table.c b/src/stick_table.c
index eebf3354d..122870059 100644
--- a/src/stick_table.c
+++ b/src/stick_table.c
@@ -1500,7 +1500,7 @@ struct stktable_key *smp_to_stkey(struct sample *smp, struct stktable *t)
 		/* The stick table require a 32bit unsigned int, "sint" is a
 		 * signed 64 it, so we can convert it inplace.
 		 */
-		*_sint = smp->data.u.sint;
+		*_sint = (uint)smp->data.u.sint;
 		static_table_key.key = _sint;
 		static_table_key.key_len = 4;
 		break;