diff --git a/packages/backend/src/db/migrations/20220904160521_add_raw_error_to_execution_steps.ts b/packages/backend/src/db/migrations/20220904160521_add_raw_error_to_execution_steps.ts
new file mode 100644
index 00000000..55eb25c2
--- /dev/null
+++ b/packages/backend/src/db/migrations/20220904160521_add_raw_error_to_execution_steps.ts
@@ -0,0 +1,13 @@
+import { Knex } from 'knex';
+
+export async function up(knex: Knex): Promise<void> {
+  return knex.schema.table('execution_steps', (table) => {
+    table.jsonb('error_details');
+  });
+}
+
+export async function down(knex: Knex): Promise<void> {
+  return knex.schema.table('execution_steps', (table) => {
+    table.dropColumn('error_details');
+  });
+}
diff --git a/packages/backend/src/models/execution-step.ts b/packages/backend/src/models/execution-step.ts
index fb94b7ab..88f971dc 100644
--- a/packages/backend/src/models/execution-step.ts
+++ b/packages/backend/src/models/execution-step.ts
@@ -10,6 +10,7 @@ class ExecutionStep extends Base {
   stepId!: string;
   dataIn!: Record<string, unknown>;
   dataOut!: Record<string, unknown>;
+  errorDetails: Record<string, unknown>;
   status = 'failure';
   step: Step;
 
@@ -25,6 +26,7 @@ class ExecutionStep extends Base {
       dataIn: { type: 'object' },
       dataOut: { type: 'object' },
       status: { type: 'string', enum: ['success', 'failure'] },
+      errorDetails: { type: ['object', 'null'] },
     },
   };