diff --git a/tools/test_apps/build_system/ld_non_contiguous_memory/main/test_app_main.c b/tools/test_apps/build_system/ld_non_contiguous_memory/main/test_app_main.c
index c71d2bef94..72f73ffa75 100644
--- a/tools/test_apps/build_system/ld_non_contiguous_memory/main/test_app_main.c
+++ b/tools/test_apps/build_system/ld_non_contiguous_memory/main/test_app_main.c
@@ -5,6 +5,7 @@
  */
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <inttypes.h>
 
 extern int _bss_start_low, _bss_start_high;