diff --git a/com.visualstudio.code.yaml b/com.visualstudio.code.yaml
index 556dbbd..6d22d62 100644
--- a/com.visualstudio.code.yaml
+++ b/com.visualstudio.code.yaml
@@ -18,7 +18,7 @@ finish-args:
   - --device=all
   - --allow=devel
   - --filesystem=host
-  - --filesystem=xdg-config/gtk-3.0
+  - --filesystem=xdg-config/gtk-3.0:ro
   - --filesystem=xdg-config/kdeglobals:ro
   - --env=NPM_CONFIG_GLOBALCONFIG=/app/etc/npmrc
   - --env=LD_LIBRARY_PATH=/app/lib