diff --git a/jerry-core/BUILD.gn b/jerry-core/BUILD.gn
index aff10c4040655ebf8274d69fadf50627214a09c4..93b4be10c22314b83afd4161fc0e54615486e244 100644
--- a/jerry-core/BUILD.gn
+++ b/jerry-core/BUILD.gn
@@ -232,7 +232,7 @@ if (board_toolchain_type != "iccarm") {
   config("jerry_core_config") {
     cflags = [
       "--diag_suppress",
-      "Pa089,Pe111,Pe188,Pe191,Pe546,Pe940",
+      "Pa089,Pe111,Pe188,Pe191,Pe546,Pe940,Pe128",
     ]
     defines = [
       "JERRY_FOR_IAR_CONFIG",