diff --git a/beacon/engine/errors.go b/beacon/engine/errors.go
index 6c022cc999..887f0df5cb 100644
--- a/beacon/engine/errors.go
+++ b/beacon/engine/errors.go
@@ -31,7 +31,7 @@ type EngineAPIError struct {
 }
 
 func (e *EngineAPIError) ErrorCode() int { return e.code }
-func (e *EngineAPIError) Error() string  { return fmt.Sprintf("msg: \"%s\". err: \"%w\"", e.msg, e.err) }
+func (e *EngineAPIError) Error() string  { return fmt.Sprintf("msg: \"%s\". err: \"%v\"", e.msg, e.err) }
 func (e *EngineAPIError) ErrorData() interface{} {
 	if e.err == nil {
 		return nil