diff --git a/src/ox/mc/CMakeLists.txt b/src/ox/mc/CMakeLists.txt
index 2824b9747..3b7c13a6b 100644
--- a/src/ox/mc/CMakeLists.txt
+++ b/src/ox/mc/CMakeLists.txt
@@ -3,7 +3,6 @@ add_library(
 		defwriter.cpp
 		presencemask.cpp
 		read.cpp
-		walker.cpp
 		write.cpp
 )