diff --git a/examples/chip-tool/commands/common/CustomStringPrefix.h b/examples/chip-tool/commands/common/CustomStringPrefix.h
index b761a358f5850c..235e190fd8f924 100644
--- a/examples/chip-tool/commands/common/CustomStringPrefix.h
+++ b/examples/chip-tool/commands/common/CustomStringPrefix.h
@@ -18,6 +18,10 @@
 
 #pragma once
 
+#include <string.h>
+
+#include <lib/support/CodeUtils.h>
+
 static constexpr char kJsonStringPrefix[] = "json:";
 constexpr size_t kJsonStringPrefixLen     = ArraySize(kJsonStringPrefix) - 1; // Don't count the null