diff --git a/scripts/install.sh b/scripts/install.sh
index 2e60e67d826..c9155b9a8d8 100755
--- a/scripts/install.sh
+++ b/scripts/install.sh
@@ -2369,7 +2369,7 @@ install_openclaw_from_git() {
     cleanup_legacy_submodules "$repo_dir"
     activate_repo_pnpm_version "$repo_dir"
 
-    SHARP_IGNORE_GLOBAL_LIBVIPS="$SHARP_IGNORE_GLOBAL_LIBVIPS" run_quiet_step "Installing dependencies" run_pnpm -C "$repo_dir" install --frozen-lockfile
+    CI="${CI:-true}" SHARP_IGNORE_GLOBAL_LIBVIPS="$SHARP_IGNORE_GLOBAL_LIBVIPS" run_quiet_step "Installing dependencies" run_pnpm -C "$repo_dir" install --frozen-lockfile
 
     if ! run_quiet_step "Building UI" run_pnpm -C "$repo_dir" ui:build; then
         ui_warn "UI build failed; continuing (CLI may still work)"