diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 3911821..826a91a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -69,8 +69,8 @@ build_windows:
       - 7za x protobuf_x86-windows-static.7z -oprotobuf_x86-windows-static
       - 7za x protobuf_x64-windows-static.7z -oprotobuf_x64-windows-static
       - 7za x sdk_standalone.7z -osdk_standalone
-      - DLL_FILES="$(ls dll/*.cpp | tr "\n" " " | tr "/" "\\")"; sed "s|dll/\*.cpp|$DLL_FILES|g" -i *.bat
-      - DLL_FILES="$(ls dll/*.proto | tr "\n" " " | tr "/" "\\" | sed "s/.proto/.pb.cc/g")"; sed "s|dll/\*.cc|$DLL_FILES|g" -i *.bat
+      - DLL_FILES="$(ls dll/*.cpp | tr "\n" " " | tr "/" "\\\\")"; sed "s|dll/\*.cpp|$DLL_FILES|g" -i *.bat
+      - DLL_FILES="$(ls dll/*.proto | tr "\n" " " | tr "/" "\\\\" | sed "s/.proto/.pb.cc/g")"; sed "s|dll/\*.cc|$DLL_FILES|g" -i *.bat
       - sed "s| /MP12 | /MP4 |g" -i *.bat
       # CI can't produce PDBs. Throws a bunch of errors, and skips building the PEs.
       - sed "s| /DDEBUG\:FULL | |g" -i *.bat