diff --git a/.gitea/workflows/ci_backup.yml b/.gitea/workflows/ci_backup.yml
index 24a82d2..22e9707 100644
--- a/.gitea/workflows/ci_backup.yml
+++ b/.gitea/workflows/ci_backup.yml
@@ -30,7 +30,7 @@ jobs:
       - name: Configure apt proxy
         run: |
           if [ -n \"${APT_CACHER_NG}\" ]; then
-            echo \"Acquire::http::Proxy \"${APT_CACHER_NG}\";\" | tee /etc/apt/apt.conf.d/01apt-cacher-ng
+            echo "Acquire::http::Proxy \"${APT_CACHER_NG}\";" | tee /etc/apt/apt.conf.d/01apt-cacher-ng
           fi
 
       - name: Install system packages
@@ -97,7 +97,7 @@ jobs:
       - name: Configure apt proxy
         run: |
           if [ -n \"${APT_CACHER_NG}\" ]; then
-            echo \"Acquire::http::Proxy \"${APT_CACHER_NG}\";\" | tee /etc/apt/apt.conf.d/01apt-cacher-ng
+            echo "Acquire::http::Proxy \"${APT_CACHER_NG}\";" | tee /etc/apt/apt.conf.d/01apt-cacher-ng
           fi
 
       - name: Install system packages