diff --git a/src/dialogs/config-flow/step-flow-form.ts b/src/dialogs/config-flow/step-flow-form.ts
index 1b7865bd4..a1969dc46 100644
--- a/src/dialogs/config-flow/step-flow-form.ts
+++ b/src/dialogs/config-flow/step-flow-form.ts
@@ -48,6 +48,7 @@ class StepFlowForm extends LitElement {
           : ""}
         <ha-form
           .data=${stepData}
+          .disabled=${this._loading}
           @value-changed=${this._stepDataChanged}
           .schema=${step.data_schema}
           .error=${step.errors}