diff --git a/.github/workflows/build_all.yml b/.github/workflows/build_all.yml
index f8d6bb8235..481c49d0a7 100644
--- a/.github/workflows/build_all.yml
+++ b/.github/workflows/build_all.yml
@@ -449,10 +449,13 @@ jobs:
         # the bounds checks are compiled in, so a stripped exe still catches them.
         find "$d/build_flatpak/tests" -type f -perm -u+x -exec strip --strip-unneeded {} + 2>/dev/null || true
         # At runtime the tests read tests/ (TEST_DATA_DIR), scripts/, and under
-        # resources/ the shipped profiles (PROFILES_DIR) and the printers/ maps.
+        # resources/ the shipped profiles (PROFILES_DIR), the printers/ maps, and
+        # the icon SVGs (NativeCommands icon names are checked against them).
         find "$d" -mindepth 1 -maxdepth 1 -type d \
           ! -name tests ! -name build_flatpak ! -name scripts ! -name resources -exec rm -rf {} +
-        find "$d/resources" -mindepth 1 -maxdepth 1 ! -name profiles ! -name printers -exec rm -rf {} +
+        find "$d/resources" -mindepth 1 -maxdepth 1 ! -name profiles ! -name printers ! -name images -exec rm -rf {} +
+        # Only the SVGs are read; the png/ico/icns/gif assets are ~35MB of dead weight.
+        find "$d/resources/images" -mindepth 1 -maxdepth 1 ! -name '*.svg' -exec rm -rf {} + 2>/dev/null || true
         tar -cf flatpak-test-asset.tar flatpak_app "$d"
     - name: Upload flatpak test asset
       uses: actions/upload-artifact@v7