diff --git a/plat/arm/css/sgi/sgi_ras.c b/plat/arm/css/sgi/sgi_ras.c
index f06c952..a04972d 100644
--- a/plat/arm/css/sgi/sgi_ras.c
+++ b/plat/arm/css/sgi/sgi_ras.c
@@ -121,7 +121,7 @@
 	 * this interrupt
 	 */
 	ras_map = find_ras_event_map_by_intr(intr);
-	assert(ras_map);
+	assert(ras_map != NULL);
 
 	/*
 	 * Populate the MM_COMMUNICATE payload to share the