diff --git a/internal/web3ext/web3ext.go b/internal/web3ext/web3ext.go
index dfd14da984..173b3d1f47 100644
--- a/internal/web3ext/web3ext.go
+++ b/internal/web3ext/web3ext.go
@@ -387,7 +387,7 @@ web3._extend({
 			inputFormatter: [null, null]
 		}),
 		new web3._extend.Method({
-			name: 'getPreimage',
+			name: 'preimage',
 			call: 'debug_preimage',
 			params: 1,
 			inputFormatter: [null]