diff --git a/errors/gerror/gerror_api_code.go b/errors/gerror/gerror_api_code.go
index e4e4a2b63..98ac32821 100644
--- a/errors/gerror/gerror_api_code.go
+++ b/errors/gerror/gerror_api_code.go
@@ -109,7 +109,7 @@ func WrapCodeSkipf(code gcode.Code, skip int, err error, format string, args ...
 	}
 }
 
-// Code returns the error code of current error.
+// Code returns the error code of `current error`.
 // It returns `CodeNil` if it has no error code neither it does not implement interface Code.
 func Code(err error) gcode.Code {
 	if err == nil {
@@ -129,8 +129,8 @@ func HasCode(err error, code gcode.Code) bool {
 	if err == nil {
 		return false
 	}
-	if e, ok := err.(ICode); ok {
-		return code == e.Code()
+	if e, ok := err.(ICode); ok && code == e.Code() {
+		return true
 	}
 	if e, ok := err.(IUnwrap); ok {
 		return HasCode(e.Unwrap(), code)
diff --git a/errors/gerror/gerror_z_unit_test.go b/errors/gerror/gerror_z_unit_test.go
index 71a1b4fc7..cb892c401 100644
--- a/errors/gerror/gerror_z_unit_test.go
+++ b/errors/gerror/gerror_z_unit_test.go
@@ -433,10 +433,14 @@ func Test_HashCode(t *testing.T) {
 		err2 := gerror.WrapCode(gcode.CodeNotAuthorized, err1, "2")
 		err3 := gerror.Wrap(err2, "3")
 		err4 := gerror.Wrap(err3, "4")
+		err5 := gerror.WrapCode(gcode.CodeInvalidParameter, err4, "5")
 		t.Assert(gerror.HasCode(err1, gcode.CodeNotAuthorized), false)
 		t.Assert(gerror.HasCode(err2, gcode.CodeNotAuthorized), true)
 		t.Assert(gerror.HasCode(err3, gcode.CodeNotAuthorized), true)
 		t.Assert(gerror.HasCode(err4, gcode.CodeNotAuthorized), true)
+		t.Assert(gerror.HasCode(err5, gcode.CodeNotAuthorized), true)
+		t.Assert(gerror.HasCode(err5, gcode.CodeInvalidParameter), true)
+		t.Assert(gerror.HasCode(err5, gcode.CodeInternalError), false)
 	})
 }