diff --git a/packages/editor-ui/src/Interface.ts b/packages/editor-ui/src/Interface.ts
index a2b192c406..d4beda47f7 100644
--- a/packages/editor-ui/src/Interface.ts
+++ b/packages/editor-ui/src/Interface.ts
@@ -101,6 +101,7 @@ export interface IEndpointOptions {
 	overlays?: any; // tslint:disable-line:no-any
 	parameters?: any; // tslint:disable-line:no-any
 	uuid?: string;
+	enabled?: boolean;
 }
 
 export interface IConnectionsUi {
diff --git a/packages/editor-ui/src/components/mixins/nodeBase.ts b/packages/editor-ui/src/components/mixins/nodeBase.ts
index 000f552f47..49897cbc74 100644
--- a/packages/editor-ui/src/components/mixins/nodeBase.ts
+++ b/packages/editor-ui/src/components/mixins/nodeBase.ts
@@ -257,8 +257,9 @@ export const nodeBase = mixins(
 					endpoint: inputData.endpoint,
 					endpointStyle: inputData.endpointStyle,
 					endpointHoverStyle: inputData.endpointHoverStyle,
-					isSource: !this.isReadOnly,
+					isSource: true,
 					isTarget: false,
+					enabled: !this.isReadOnly,
 					parameters: {
 						nodeIndex: this.nodeIndex,
 						type: inputName,