diff --git a/drivers/accel/rocket/rocket_job.c b/drivers/accel/rocket/rocket_job.c
index f40435505818..4bc4f9c8ee40 100644
--- a/drivers/accel/rocket/rocket_job.c
+++ b/drivers/accel/rocket/rocket_job.c
@@ -283,7 +283,7 @@ static struct rocket_core *sched_to_core(struct rocket_device *rdev,
 {
 	unsigned int core;
 
-	for (core = 0; core < rdev->num_cores; core++) {
+	for (core = 0; core < rdev->max_cores; core++) {
 		if (&rdev->cores[core].sched == sched)
 			return &rdev->cores[core];
 	}