diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 159e994..7360d45 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -25,6 +25,9 @@ jobs:
         fi
         shellcheck -S error bin/gh-switch lib/*.sh
 
+    - name: Make install.sh executable
+      run: chmod +x install.sh
+
     - name: Test installation
       run: |
         ./install.sh
diff --git a/install.sh b/install.sh
index 74edfd2..2eb897f 100644
--- a/install.sh
+++ b/install.sh
@@ -72,7 +72,11 @@ else
 fi
 
 # Optional: Install shell completions
-read -p "Install shell completions? (y/n): " install_completions
+if [[ -n "$CI" ]]; then
+    install_completions="n"
+else
+    read -p "Install shell completions? (y/n): " install_completions
+fi
 if [[ "$install_completions" == "y" ]]; then
     if [[ -f "completions/gh-switch.bash" ]] && [[ -d "/etc/bash_completion.d" ]]; then
         sudo cp completions/gh-switch.bash /etc/bash_completion.d/