diff --git a/include/nuttx/cache.h b/include/nuttx/cache.h
index 030b6d7e3f7..ef5e477b6e0 100644
--- a/include/nuttx/cache.h
+++ b/include/nuttx/cache.h
@@ -342,7 +342,7 @@ void up_disable_dcache(void);
 #ifdef CONFIG_ARCH_DCACHE
 void up_invalidate_dcache(uintptr_t start, uintptr_t end);
 #else
-#  define up_invalidate_dcache(start, end)
+#  define up_invalidate_dcache(start, end) ((void)(start), (void)(end))
 #endif
 
 /****************************************************************************
@@ -384,7 +384,7 @@ void up_invalidate_dcache_all(void);
 #ifdef CONFIG_ARCH_DCACHE
 void up_clean_dcache(uintptr_t start, uintptr_t end);
 #else
-#  define up_clean_dcache(start, end)
+#  define up_clean_dcache(start, end) ((void)(start), (void)(end))
 #endif
 
 /****************************************************************************