diff --git a/drivers/powercap/intel_rapl_common.c b/drivers/powercap/intel_rapl_common.c
index 3c373eb05c2a681d033fb97e54ac7553b7a6e24a..3350054632f1e87e522268d7a92d83a1245376d0 100644
--- a/drivers/powercap/intel_rapl_common.c
+++ b/drivers/powercap/intel_rapl_common.c
@@ -740,7 +740,7 @@ static struct rapl_primitive_info *get_rpi(struct rapl_package *rp, int prim)
 {
 	struct rapl_primitive_info *rpi = rp->priv->rpi;
 
-	if (prim < 0 || prim > NR_RAPL_PRIMITIVES || !rpi)
+	if (prim < 0 || prim >= NR_RAPL_PRIMITIVES || !rpi)
 		return NULL;
 
 	return &rpi[prim];