diff --git a/src/freedombone-utils-gnusocialtools b/src/freedombone-utils-gnusocialtools
index c6791d46..10707042 100755
--- a/src/freedombone-utils-gnusocialtools
+++ b/src/freedombone-utils-gnusocialtools
@@ -750,6 +750,7 @@ function gnusocial_use_classic {
     if [ -f "/etc/nginx/sites-available/$domain_name" ]; then
         sed -i 's|index_qvitter.php|index.php|g' "/etc/nginx/sites-available/$domain_name"
         sed -i 's|index.html|index.php|g' "/etc/nginx/sites-available/$domain_name"
+        sed -i 's|#add_header Content-Security-Policy|add_header Content-Security-Policy|g' "/etc/nginx/sites-available/$domain_name"
     fi
 
     if ! grep -q "//addPlugin('Qvitter')" "/var/www/$domain_name/htdocs/config.php"; then
@@ -774,6 +775,9 @@ function gnusocial_use_qvitter {
     if [ -f "/etc/nginx/sites-available/$domain_name" ]; then
         sed -i 's|index_qvitter.php|index.php|g' "/etc/nginx/sites-available/$domain_name"
         sed -i 's|index.html|index.php|g' "/etc/nginx/sites-available/$domain_name"
+        if ! grep -q "#add_header Content-Security-Policy" "/etc/nginx/sites-available/$domain_name"; then
+            sed -i 's|add_header Content-Security-Policy|#add_header Content-Security-Policy|g' "/etc/nginx/sites-available/$domain_name"
+        fi
     fi
 
     if grep -q "//addPlugin('Qvitter')" "/var/www/$domain_name/htdocs/config.php"; then
@@ -805,6 +809,7 @@ function gnusocial_use_pleroma {
     if [ -f "/etc/nginx/sites-available/$domain_name" ]; then
         sed -i 's|index.php|index_qvitter.php|g' "/etc/nginx/sites-available/$domain_name"
         sed -i 's|index index_qvitter.php|index index.html|g' "/etc/nginx/sites-available/$domain_name"
+        sed -i 's|#add_header Content-Security-Policy|add_header Content-Security-Policy|g' "/etc/nginx/sites-available/$domain_name"
     fi
 
     if grep -q "//addPlugin('Qvitter')" "/var/www/$domain_name/htdocs/config.php"; then