diff --git a/runtime/ddr/dummy_headers/string.h b/runtime/ddr/dummy_headers/string.h
index b899a8a78bb..a1fec13969e 100644
--- a/runtime/ddr/dummy_headers/string.h
+++ b/runtime/ddr/dummy_headers/string.h
@@ -20,6 +20,5 @@
  * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0 OR GPL-2.0-only WITH OpenJDK-assembly-exception-1.0
  *******************************************************************************/
 
-
-void * memmove ( void * destination, const void * source, size_t num );
-
+void *memmove(void *destination, const void *source, size_t num);
+size_t strlen(const char *str);