diff --git a/.devcontainer/source-build-scripts/buildTarball.sh b/.devcontainer/source-build-scripts/buildTarball.sh
index d62e353e4..d1b714e77 100755
--- a/.devcontainer/source-build-scripts/buildTarball.sh
+++ b/.devcontainer/source-build-scripts/buildTarball.sh
@@ -5,4 +5,8 @@
 cd $(realpath ..)/dotnet-source/
 
 ./prep.sh
-./build.sh --online --clean-while-building || true
\ No newline at end of file
+
+# GitHub Codespaces automatically sets RepositoryName, which conflicts with source-build scripts.
+unset RepositoryName
+
+./build.sh --online --clean-while-building || true
diff --git a/CODEOWNERS b/CODEOWNERS
index df0cb831e..671ebdfe5 100644
--- a/CODEOWNERS
+++ b/CODEOWNERS
@@ -3,5 +3,6 @@
 
 # Snaps
 
+/.devcontainer/ @dotnet/source-build-internal
 /src/snaps/ @rbhanda
-/src/SourceBuild/ @dotnet/source-build-internal
\ No newline at end of file
+/src/SourceBuild/ @dotnet/source-build-internal