diff --git a/lib/spells/ObstacleCasterProxy.cpp b/lib/spells/ObstacleCasterProxy.cpp
index 437ffd445..b36e28537 100644
--- a/lib/spells/ObstacleCasterProxy.cpp
+++ b/lib/spells/ObstacleCasterProxy.cpp
@@ -8,6 +8,7 @@
  *
  */
 
+#include "StdInc.h"
 #include "ObstacleCasterProxy.h"
 
 VCMI_LIB_NAMESPACE_BEGIN