diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index 8228f7382491c5ee8a10c0e4154b2dbeab2bd96c..73a76e2ee936036f7be01e58e0d2bc46ee2ccc05 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -639,7 +639,7 @@ unsigned int kstat_irqs(unsigned int irq)
  */
 unsigned int kstat_irqs_usr(unsigned int irq)
 {
-	int sum;
+	unsigned int sum;
 
 	irq_lock_sparse();
 	sum = kstat_irqs(irq);