diff --git a/libs/utils/src/ostream.cpp b/libs/utils/src/ostream.cpp
index 5b0fb4781c0..579dc9e36e9 100644
--- a/libs/utils/src/ostream.cpp
+++ b/libs/utils/src/ostream.cpp
@@ -31,6 +31,7 @@
 
 #include <stdlib.h>
 #include <stdarg.h>
+#include <string.h>
 
 template class utils::PrivateImplementation<utils::io::ostream_>;