diff --git a/src/utils/string_utils.cpp b/src/utils/string_utils.cpp
index 68f9807de..ecf0e1c65 100644
--- a/src/utils/string_utils.cpp
+++ b/src/utils/string_utils.cpp
@@ -25,6 +25,7 @@
 #include <cstring>
 #include <stdio.h>
 #include <exception>
+#include <assert>
 
 namespace StringUtils
 {