diff --git a/F-Droid/src/org/fdroid/fdroid/data/DBHelper.java b/F-Droid/src/org/fdroid/fdroid/data/DBHelper.java
index 1173517a9..1b89b0ab8 100644
--- a/F-Droid/src/org/fdroid/fdroid/data/DBHelper.java
+++ b/F-Droid/src/org/fdroid/fdroid/data/DBHelper.java
@@ -423,11 +423,16 @@ public class DBHelper extends SQLiteOpenHelper {
     }
 
     private void addCredentialsToRepo(SQLiteDatabase db, int oldVersion) {
-        if (oldVersion < 52 && !columnExists(db, TABLE_REPO, "username") && !columnExists(db, TABLE_REPO, "password")) {
-            Utils.debugLog(TAG, "Adding username field to " + TABLE_REPO + " table in db.");
-            db.execSQL("alter table " + TABLE_REPO + " add column username string;");
-            Utils.debugLog(TAG, "Adding password field to " + TABLE_REPO + " table in db.");
-            db.execSQL("alter table " + TABLE_REPO + " add column password string;");
+        if (oldVersion < 52) {
+            if (!columnExists(db, TABLE_REPO, "username")) {
+                Utils.debugLog(TAG, "Adding username field to " + TABLE_REPO + " table in db.");
+                db.execSQL("alter table " + TABLE_REPO + " add column username string;");
+            }
+
+            if (!columnExists(db, TABLE_REPO, "password")) {
+                Utils.debugLog(TAG, "Adding password field to " + TABLE_REPO + " table in db.");
+                db.execSQL("alter table " + TABLE_REPO + " add column password string;");
+            }
         }
     }