diff --git a/spa/include/spa/pod/pod.h b/spa/include/spa/pod/pod.h
index d1a1af857..22c88f883 100644
--- a/spa/include/spa/pod/pod.h
+++ b/spa/include/spa/pod/pod.h
@@ -120,6 +120,7 @@ struct spa_pod_long {
 struct spa_pod_float {
 	struct spa_pod pod;
 	float value;
+	int32_t __padding;
 };
 
 struct spa_pod_double {