diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/database/ActivityDatabaseHandler.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/database/ActivityDatabaseHandler.java
index 13557906..f186f88e 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/database/ActivityDatabaseHandler.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/database/ActivityDatabaseHandler.java
@@ -34,7 +34,7 @@ public class ActivityDatabaseHandler extends SQLiteOpenHelper implements DBHandl
 
     private static final Logger LOG = LoggerFactory.getLogger(ActivityDatabaseHandler.class);
 
-    private static final int DATABASE_VERSION = 6;
+    private static final int DATABASE_VERSION = 7;
 
     public ActivityDatabaseHandler(Context context) {
         super(context, DATABASE_NAME, null, DATABASE_VERSION);
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/database/DBHelper.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/database/DBHelper.java
index b9b679bf..7c53d326 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/database/DBHelper.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/database/DBHelper.java
@@ -73,9 +73,18 @@ public class DBHelper {
 
     public static boolean existsColumn(String tableName, String columnName, SQLiteDatabase db) {
         try (Cursor res = db.rawQuery("PRAGMA table_info('" + tableName + "')", null)) {
-            int result = res.getColumnIndex(columnName);
-            return result != -1;
+            int index = res.getColumnIndex("name");
+            if (index < 1) {
+                return false; // something's really wrong
+            }
+            while (res.moveToNext()) {
+                String cn = res.getString(index);
+                if (columnName.equals(cn)) {
+                    return true;
+                }
+            }
         }
+        return false;
     }
 
     /**
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/database/schema/ActivityDBUpdate_7.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/database/schema/ActivityDBUpdate_7.java
new file mode 100644
index 00000000..84638f3c
--- /dev/null
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/database/schema/ActivityDBUpdate_7.java
@@ -0,0 +1,16 @@
+package nodomain.freeyourgadget.gadgetbridge.database.schema;
+
+import android.database.sqlite.SQLiteDatabase;
+
+import nodomain.freeyourgadget.gadgetbridge.database.DBHelper;
+import nodomain.freeyourgadget.gadgetbridge.database.DBUpdateScript;
+
+import static nodomain.freeyourgadget.gadgetbridge.database.DBConstants.KEY_CUSTOM_SHORT;
+import static nodomain.freeyourgadget.gadgetbridge.database.DBConstants.TABLE_GBACTIVITYSAMPLES;
+
+/**
+ * Bugfix for users who installed 0.8.1 cleanly, i.e. without any previous
+ * database. Perform Update script 6 again.
+ */
+public class ActivityDBUpdate_7 extends ActivityDBUpdate_6 {
+}