diff --git a/targets/TARGET_Cypress/TARGET_PSOC6/flash_api.c b/targets/TARGET_Cypress/TARGET_PSOC6/flash_api.c
index 16452e61d2..7141757bf0 100644
--- a/targets/TARGET_Cypress/TARGET_PSOC6/flash_api.c
+++ b/targets/TARGET_Cypress/TARGET_PSOC6/flash_api.c
@@ -86,7 +86,7 @@ uint8_t flash_get_erase_value(const flash_t *obj)
 {
     (void)obj;
 
-    return 0xFF;
+    return 0x00;
 }
 
 #endif // DEVICE_FLASH