diff --git a/src/main/java/appeng/tile/misc/TileInterface.java b/src/main/java/appeng/tile/misc/TileInterface.java
index 4b6b02127..03aa79bed 100644
--- a/src/main/java/appeng/tile/misc/TileInterface.java
+++ b/src/main/java/appeng/tile/misc/TileInterface.java
@@ -370,13 +370,18 @@ public class TileInterface extends AENetworkInvTile implements IGridTickable, IT
 	@Override
 	public boolean hasCapability( Capability<?> capability, @Nullable EnumFacing facing )
 	{
-		return this.duality.hasCapability( capability, facing );
+		return this.duality.hasCapability( capability, facing )
+				|| super.hasCapability( capability, facing );
 	}
 
 	@Override
 	public <T> T getCapability( Capability<T> capability, @Nullable EnumFacing facing )
 	{
-		return this.duality.getCapability( capability, facing );
+		T result = this.duality.getCapability( capability, facing );
+		if( result != null )
+		{
+			return result;
+		}
+		return super.getCapability( capability, facing );
 	}
-
 }
diff --git a/src/main/java/appeng/tile/networking/TileCableBus.java b/src/main/java/appeng/tile/networking/TileCableBus.java
index 696a976e7..7d58b6b22 100644
--- a/src/main/java/appeng/tile/networking/TileCableBus.java
+++ b/src/main/java/appeng/tile/networking/TileCableBus.java
@@ -400,7 +400,9 @@ public class TileCableBus extends AEBaseTile implements AEMultiTile, ICustomColl
 		AEPartLocation partLocation = AEPartLocation.fromFacing( fromSide );
 
 		IPart part = getPart( partLocation );
-		return part != null && part.hasCapability( capabilityClass );
+		boolean result = part != null && part.hasCapability( capabilityClass );
+
+		return result || super.hasCapability( capabilityClass, fromSide );
 	}
 
 	@Override
@@ -410,7 +412,14 @@ public class TileCableBus extends AEBaseTile implements AEMultiTile, ICustomColl
 		AEPartLocation partLocation = AEPartLocation.fromFacing( fromSide );
 
 		IPart part = getPart( partLocation );
-		return part == null ? null : part.getCapability( capabilityClass );
+		T result = part == null ? null : part.getCapability( capabilityClass );
+
+		if( result != null )
+		{
+			return result;
+		}
+
+		return super.getCapability( capabilityClass, fromSide );
 	}
 
 }