diff --git a/include/linux/iova.h b/include/linux/iova.h
index 71d8a2de6635..6b6cc104e300 100644
--- a/include/linux/iova.h
+++ b/include/linux/iova.h
@@ -133,7 +133,7 @@ static inline unsigned long iova_pfn(struct iova_domain *iovad, dma_addr_t iova)
 	return iova >> iova_shift(iovad);
 }
 
-#if IS_ENABLED(CONFIG_IOMMU_IOVA)
+#if IS_REACHABLE(CONFIG_IOMMU_IOVA)
 int iova_cache_get(void);
 void iova_cache_put(void);