diff --git a/pyproject.toml b/pyproject.toml
index a730637..b3f603f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [project]
 name = "comfyui_resolutionselectorplus"
 description = "Custom node for ComfyUI providing easy resolution and empty latent selection for image generation workflows."
-version = "2.1.0"
+version = "2.1.1"
 license = {file = "LICENSE"}
 
 [project.urls]
diff --git a/resolution_selector.py b/resolution_selector.py
index 0626798..97a2884 100755
--- a/resolution_selector.py
+++ b/resolution_selector.py
@@ -454,10 +454,12 @@ class ResolutionSelector:
         return {"samples": latent_tensor}
 
 
+# node_id must be unique: ComfyUI core ships a built-in "ResolutionSelector"
+# (comfy_extras/nodes_resolution.py), so this pack registers under a distinct id.
 NODE_CLASS_MAPPINGS = {
-    "ResolutionSelector": ResolutionSelector,
+    "ResolutionSelectorPlus": ResolutionSelector,
 }
 
 NODE_DISPLAY_NAME_MAPPINGS = {
-    "ResolutionSelector": "Resolution Selector Plus",
+    "ResolutionSelectorPlus": "Resolution Selector Plus",
 }
diff --git a/web/js/resolution_selector.js b/web/js/resolution_selector.js
index 73770eb..cace2ea 100644
--- a/web/js/resolution_selector.js
+++ b/web/js/resolution_selector.js
@@ -167,10 +167,10 @@ function getDefaultResolution(model) {
 }
 
 app.registerExtension({
-    name: "ResolutionSelector.DynamicDropdown",
+    name: "ResolutionSelectorPlus.DynamicDropdown",
 
     async nodeCreated(node) {
-        if (node.comfyClass !== "ResolutionSelector") return;
+        if (node.comfyClass !== "ResolutionSelectorPlus") return;
 
         // Set wider default node width to prevent text cutoff
         node.setSize([400, node.size[1]]);
@@ -220,7 +220,7 @@ app.registerExtension({
     },
 
     async loadedGraphNode(node) {
-        if (node.comfyClass !== "ResolutionSelector") return;
+        if (node.comfyClass !== "ResolutionSelectorPlus") return;
 
         const modelWidget = node.widgets.find(w => w.name === "model");
         if (modelWidget) {