diff --git a/CMakeLists.txt b/CMakeLists.txt
index f864f88..eaa90b4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -28,20 +28,22 @@ include(ExternalProject)
 if (NOT HAS_OWN_DEPOT_TOOLS)
   if (WIN32)
     set(GCLIENT_EXECUTABLE ${CMAKE_BINARY_DIR}/depot_tools/src/depot-tools/gclient.bat)
+    set(DEPOT_UPDATE_COMMAND update_depot_tools.bat)
   else (WIN32)
     set(GCLIENT_EXECUTABLE ${CMAKE_BINARY_DIR}/depot_tools/src/depot-tools/gclient)
+    set(DEPOT_UPDATE_COMMAND bash update_depot_tools)
   endif (WIN32)
 
   ExternalProject_Add(
       depot-tools
 
-      GIT_REPOSITORY https://chromium.googlesource.com/chromium/tools/depot_tools
+      GIT_REPOSITORY https://chromium.googlesource.com/chromium/tools/depot_tools.git
 
       PREFIX ${CMAKE_BINARY_DIR}/depot_tools
 
       CONFIGURE_COMMAND ""
       UPDATE_COMMAND ""
-      PATCH_COMMAND ""
+      PATCH_COMMAND ${DEPOT_UPDATE_COMMAND}
       BUILD_COMMAND ""
       INSTALL_COMMAND ""
   )