diff --git a/source/games/duke/CMakeLists.txt b/source/games/duke/CMakeLists.txt
index d1ccdc629..c087c9c20 100644
--- a/source/games/duke/CMakeLists.txt
+++ b/source/games/duke/CMakeLists.txt
@@ -1,6 +1,6 @@
 
 set( PCH_SOURCES
-	src/actors.cpp
+	src/actors_e.cpp
 	src/anim.cpp
 	src/cheats.cpp
 	src/cmdline.cpp
diff --git a/source/games/duke/src/actors.cpp b/source/games/duke/src/actors_e.cpp
similarity index 100%
rename from source/games/duke/src/actors.cpp
rename to source/games/duke/src/actors_e.cpp