diff --git a/move.go b/move.go
index 3e8a55e..97c96c4 100644
--- a/move.go
+++ b/move.go
@@ -17,7 +17,7 @@ func Move(state *State, shutters []string, position int64) {
 		m := &models.ModulePercentage{
 			Bridge:         state.ModuleStatus[state.ModuleForName[x]].Bridge,
 			ID:             state.ModuleForName[x],
-			TargetPosition: position,
+			TargetPosition: swag.Int64(position),
 		}
 		updates = append(updates, m)
 	}
diff --git a/swagger.yaml b/swagger.yaml
index ec5d3c3..08e5fd9 100644
--- a/swagger.yaml
+++ b/swagger.yaml
@@ -327,6 +327,7 @@ definitions:
       target_position:
         description: percentage open
         type: integer
+        x-nullable: true
 securityDefinitions:
   OAuth2:
     type: oauth2