diff --git a/app/src/main/java/com/owncloud/android/ui/fragment/FileDetailSharingFragment.java b/app/src/main/java/com/owncloud/android/ui/fragment/FileDetailSharingFragment.java
index 6aa21b6ff8..071faeee46 100644
--- a/app/src/main/java/com/owncloud/android/ui/fragment/FileDetailSharingFragment.java
+++ b/app/src/main/java/com/owncloud/android/ui/fragment/FileDetailSharingFragment.java
@@ -81,7 +81,7 @@ public class FileDetailSharingFragment extends Fragment implements ShareeListAda
     DisplayUtils.AvatarGenerationListener,
     Injectable, FileDetailsSharingMenuBottomSheetActions, QuickSharingPermissionsBottomSheetDialog.QuickPermissionSharingBottomSheetActions {
 
-    private final String tag = "FileDetailSharingFragment";
+    private static final String TAG = "FileDetailSharingFragment";
     private static final String ARG_FILE = "FILE";
     private static final String ARG_USER = "USER";
 
@@ -543,7 +543,7 @@ public class FileDetailSharingFragment extends Fragment implements ShareeListAda
     @Override
     public void onSaveInstanceState(@NonNull Bundle outState) {
         super.onSaveInstanceState(outState);
-        FileExtensionsKt.logFileSize(file, tag);
+        FileExtensionsKt.logFileSize(file, TAG);
         outState.putParcelable(ARG_FILE, file);
         outState.putParcelable(ARG_USER, user);
     }
diff --git a/app/src/main/java/com/owncloud/android/ui/fragment/GalleryFragment.java b/app/src/main/java/com/owncloud/android/ui/fragment/GalleryFragment.java
index 14675325b7..d1d2fa8b5e 100644
--- a/app/src/main/java/com/owncloud/android/ui/fragment/GalleryFragment.java
+++ b/app/src/main/java/com/owncloud/android/ui/fragment/GalleryFragment.java
@@ -67,8 +67,8 @@ public class GalleryFragment extends OCFileListFragment implements GalleryFragme
     private GalleryFragmentBottomSheetDialog galleryFragmentBottomSheetDialog;
 
     @Inject FileDataStorageManager fileDataStorageManager;
-    private final int maxColumnSizeLandscape = 5;
-    private final int maxColumnSizePortrait = 2;
+    private final static int maxColumnSizeLandscape = 5;
+    private final static int maxColumnSizePortrait = 2;
     private int columnSize;
 
     protected void setPhotoSearchQueryRunning(boolean value) {
diff --git a/app/src/main/java/com/owncloud/android/ui/preview/PreviewTextStringFragment.java b/app/src/main/java/com/owncloud/android/ui/preview/PreviewTextStringFragment.java
index 7229e453e5..28b63b979a 100644
--- a/app/src/main/java/com/owncloud/android/ui/preview/PreviewTextStringFragment.java
+++ b/app/src/main/java/com/owncloud/android/ui/preview/PreviewTextStringFragment.java
@@ -22,7 +22,6 @@ import com.nextcloud.client.account.UserAccountManager;
 import com.nextcloud.utils.extensions.FileExtensionsKt;
 import com.owncloud.android.R;
 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
-import com.owncloud.android.lib.common.utils.Log_OC;
 import com.owncloud.android.ui.activity.FileDisplayActivity;
 import com.owncloud.android.utils.DisplayUtils;
 import com.owncloud.android.utils.theme.ViewThemeUtils;
@@ -39,7 +38,7 @@ public class PreviewTextStringFragment extends PreviewTextFragment {
     @Inject UserAccountManager accountManager;
     @Inject ViewThemeUtils viewThemeUtils;
 
-    private final String tag = "PreviewTextStringFragment";
+    private final static String TAG = "PreviewTextStringFragment";
     private boolean isEditorWebviewLaunched = false;
 
     /**
@@ -73,7 +72,7 @@ public class PreviewTextStringFragment extends PreviewTextFragment {
      */
     @Override
     public void onSaveInstanceState(@NonNull Bundle outState) {
-        FileExtensionsKt.logFileSize(getFile(), tag);
+        FileExtensionsKt.logFileSize(getFile(), TAG);
         outState.putParcelable(PreviewTextStringFragment.EXTRA_FILE, getFile());
 
         super.onSaveInstanceState(outState);