diff --git a/nextcloud/Dockerfile.13.0 b/nextcloud/Dockerfile.13.0
index 1db4479..ce56a7f 100644
--- a/nextcloud/Dockerfile.13.0
+++ b/nextcloud/Dockerfile.13.0
@@ -17,7 +17,7 @@ ENV UID=991 GID=991 \
     TZ=Etc/UTC \
     DB_TYPE=sqlite3 \
     DOMAIN=localhost \
-    ChECK_PERMISSIONS=1
+    CHECK_PERMISSIONS=1
 
 RUN apk -U upgrade \
  && apk add -t build-dependencies \
diff --git a/nextcloud/Dockerfile.14.0 b/nextcloud/Dockerfile.14.0
index 224cd8e..c047f0c 100644
--- a/nextcloud/Dockerfile.14.0
+++ b/nextcloud/Dockerfile.14.0
@@ -17,7 +17,7 @@ ENV UID=991 GID=991 \
     TZ=Etc/UTC \
     DB_TYPE=sqlite3 \
     DOMAIN=localhost \
-    ChECK_PERMISSIONS=1
+    CHECK_PERMISSIONS=1
 
 RUN apk -U upgrade \
  && apk add -t build-dependencies \
diff --git a/nextcloud/README.md b/nextcloud/README.md
index 0933acc..33a6b80 100644
--- a/nextcloud/README.md
+++ b/nextcloud/README.md
@@ -56,7 +56,7 @@ Other tags than `daily` are built weekly. For security reasons, you should occas
 - **DB_USER** : username for database *(default : none)*
 - **DB_PASSWORD** : password for database user *(default : none)*
 - **DB_HOST** : database host *(default : none)*
-- **CHECK_PERMISSIONS** : disable permission check *(default: 1)*
+- **CHECK_PERMISSIONS** : disable permission check for /data folder *(default: 1)*
 
 Don't forget to use a **strong password** for the admin account!
 
diff --git a/nextcloud/rootfs/usr/local/bin/run.sh b/nextcloud/rootfs/usr/local/bin/run.sh
index 65c068d..aea112c 100644
--- a/nextcloud/rootfs/usr/local/bin/run.sh
+++ b/nextcloud/rootfs/usr/local/bin/run.sh
@@ -22,20 +22,20 @@ if [ ! -d /data/session ]; then
   mkdir -p /data/session;
 fi
 
-if [ "$CHECK_PERMISSIONS" = "1" ]; then
-  echo "Updating permissions..."
-  for dir in /nextcloud /data /config /apps2 /var/log /php /nginx /tmp /etc/s6.d; do
-    if $(find $dir ! -user $UID -o ! -group $GID|egrep '.' -q); then
-      echo "Updating permissions in $dir..."
-      chown -R $UID:$GID $dir
-    else
-      echo "Permissions in $dir are correct."
-    fi
-  done
-  echo "Done updating permissions."
-else
-  echo "Skip checking permissions"
-fi
+echo "Updating permissions..."
+for dir in /nextcloud /data /config /apps2 /var/log /php /nginx /tmp /etc/s6.d; do
+  if [ "$dir" = "/data" ] && [ "$CHECK_PERMISSIONS" = "0" ]; then
+    echo "WARNING: Skip checking permissions for /data"
+    continue
+  fi
+  if $(find $dir ! -user $UID -o ! -group $GID|egrep '.' -q); then
+    echo "Updating permissions in $dir..."
+    chown -R $UID:$GID $dir
+  else
+    echo "Permissions in $dir are correct."
+  fi
+done
+echo "Done updating permissions."
 
 if [ ! -f /config/config.php ]; then
     # New installation, run the setup