diff --git a/Tools/AnvilStats/CMakeLists.txt b/Tools/AnvilStats/CMakeLists.txt
index 557a4c17a..688fbe493 100644
--- a/Tools/AnvilStats/CMakeLists.txt
+++ b/Tools/AnvilStats/CMakeLists.txt
@@ -53,7 +53,6 @@ set(SHARED_OSS_SRC
 	../../src/OSSupport/File.cpp
 	../../src/OSSupport/GZipFile.cpp
 	../../src/OSSupport/IsThread.cpp
-	../../src/OSSupport/Timer.cpp
 )
 
 set(SHARED_OSS_HDR
@@ -62,7 +61,6 @@ set(SHARED_OSS_HDR
 	../../src/OSSupport/File.h
 	../../src/OSSupport/GZipFile.h
 	../../src/OSSupport/IsThread.h
-	../../src/OSSupport/Timer.h
 )
 
 flatten_files(SHARED_SRC)
diff --git a/Tools/MCADefrag/CMakeLists.txt b/Tools/MCADefrag/CMakeLists.txt
index 42b42018b..ea345d87c 100644
--- a/Tools/MCADefrag/CMakeLists.txt
+++ b/Tools/MCADefrag/CMakeLists.txt
@@ -54,13 +54,11 @@ set(SHARED_OSS_SRC
 	../../src/OSSupport/CriticalSection.cpp
 	../../src/OSSupport/File.cpp
 	../../src/OSSupport/IsThread.cpp
-	../../src/OSSupport/Timer.cpp
 )
 set(SHARED_OSS_HDR
 	../../src/OSSupport/CriticalSection.h
 	../../src/OSSupport/File.h
 	../../src/OSSupport/IsThread.h
-	../../src/OSSupport/Timer.h
 )
 
 flatten_files(SHARED_OSS_SRC)
diff --git a/Tools/ProtoProxy/CMakeLists.txt b/Tools/ProtoProxy/CMakeLists.txt
index bc3923d90..b136a10ba 100644
--- a/Tools/ProtoProxy/CMakeLists.txt
+++ b/Tools/ProtoProxy/CMakeLists.txt
@@ -57,13 +57,11 @@ set(SHARED_OSS_SRC
 	../../src/OSSupport/CriticalSection.cpp
 	../../src/OSSupport/File.cpp
 	../../src/OSSupport/IsThread.cpp
-	../../src/OSSupport/Timer.cpp
 )
 set(SHARED_OSS_HDR
 	../../src/OSSupport/CriticalSection.h
 	../../src/OSSupport/File.h
 	../../src/OSSupport/IsThread.h
-	../../src/OSSupport/Timer.h
 )
 flatten_files(SHARED_SRC)
 flatten_files(SHARED_HDR)