diff --git a/Demo/Common/ethernet/FreeTCPIP/net/pack_struct_end.h b/Demo/Common/ethernet/FreeTCPIP/net/pack_struct_end.h
index 522a859af..8a5951fca 100644
--- a/Demo/Common/ethernet/FreeTCPIP/net/pack_struct_end.h
+++ b/Demo/Common/ethernet/FreeTCPIP/net/pack_struct_end.h
@@ -21,3 +21,8 @@
 	;
 	#pragma pack()
 #endif
+
+#ifdef __ICCARM__
+	;
+	#pragma pack()
+#endif
diff --git a/Demo/Common/ethernet/FreeTCPIP/net/pack_struct_start.h b/Demo/Common/ethernet/FreeTCPIP/net/pack_struct_start.h
index 94bc0f522..efa41a0a4 100644
--- a/Demo/Common/ethernet/FreeTCPIP/net/pack_struct_start.h
+++ b/Demo/Common/ethernet/FreeTCPIP/net/pack_struct_start.h
@@ -22,3 +22,8 @@
 #ifdef __ICCRX__
 	#pragma pack(1)
 #endif
+
+
+#ifdef __ICCARM__
+	#pragma pack(1)
+#endif