diff --git a/targets/TARGET_RENESAS/TARGET_RZ_A1XX/flash_api.c b/targets/TARGET_RENESAS/TARGET_RZ_A1XX/flash_api.c
index 1fb4862f38..34223653e8 100644
--- a/targets/TARGET_RENESAS/TARGET_RZ_A1XX/flash_api.c
+++ b/targets/TARGET_RENESAS/TARGET_RZ_A1XX/flash_api.c
@@ -160,7 +160,7 @@ uint32_t flash_get_sector_size(const flash_t *obj, uint32_t address)
 
 uint32_t flash_get_page_size(const flash_t *obj)
 {
-    return 1;
+    return 8;
 }
 
 uint32_t flash_get_start_address(const flash_t *obj)