diff --git a/doomsday/engine/src/resource/models.cpp b/doomsday/engine/src/resource/models.cpp
index da1731c06b..c8bc63836b 100644
--- a/doomsday/engine/src/resource/models.cpp
+++ b/doomsday/engine/src/resource/models.cpp
@@ -31,6 +31,7 @@
 #include "de_platform.h"
 
 #include <cmath>
+#include <cstring> // memset
 
 #include "de_base.h"
 #include "de_console.h"