diff --git a/plat/xilinx/versal/plat_psci.c b/plat/xilinx/versal/plat_psci.c
index 74c5bf3..a299d14 100644
--- a/plat/xilinx/versal/plat_psci.c
+++ b/plat/xilinx/versal/plat_psci.c
@@ -250,7 +250,7 @@
 
 	uint32_t pstate = psci_get_pstate_type(power_state);
 
-	assert(req_state);
+	assert(req_state != NULL);
 
 	/* Sanity check the requested state */
 	if (pstate == PSTATE_TYPE_STANDBY) {