diff --git a/libsrc/include/mystdlib.h b/libsrc/include/mystdlib.h
index 08f4af3e..17b498eb 100644
--- a/libsrc/include/mystdlib.h
+++ b/libsrc/include/mystdlib.h
@@ -20,6 +20,7 @@
 #include <mutex>
 #include <atomic>
 #include <optional>
+#include <cassert>
 
 #include <new>
 #include <string>