diff --git a/mock_ssh_test.go b/mock_ssh_test.go
index 744a0da..fca1a78 100644
--- a/mock_ssh_test.go
+++ b/mock_ssh_test.go
@@ -1152,7 +1152,11 @@ func moduleBlockinfileWithClient(_ *Executor, client sshFileRunner, args map[str
 			replaceAll(endMarker, "/", "\\/"),
 			path)
 		_, _, _, _ = client.Run(context.Background(), cmd)
-		return &TaskResult{Changed: true}, nil
+		result := &TaskResult{Changed: true}
+		if backupPath != "" {
+			result.Data = map[string]any{"backup_file": backupPath}
+		}
+		return result, nil
 	}
 
 	// Create file if needed (best-effort)
diff --git a/modules.go b/modules.go
index 54d9c59..1c82c84 100644
--- a/modules.go
+++ b/modules.go
@@ -3565,8 +3565,22 @@ func (e *Executor) moduleBlockinfile(ctx context.Context, client sshExecutorClie
 			replaceAll(beginMarker, "/", "\\/"),
 			replaceAll(endMarker, "/", "\\/"),
 			path)
-		_, _, _, _ = client.Run(ctx, cmd)
-		return &TaskResult{Changed: true}, nil
+		stdout, stderr, rc, err := client.Run(ctx, cmd)
+		if err != nil || rc != 0 {
+			return &TaskResult{Failed: true, Msg: stderr, Stdout: stdout, RC: rc}, nil
+		}
+
+		result := &TaskResult{Changed: true}
+		if backupPath != "" {
+			result.Data = map[string]any{"backup_file": backupPath}
+		}
+		if e.Diff {
+			if after, ok := remoteFileText(ctx, client, path); ok && before != after {
+				result.Data = ensureTaskResultData(result.Data)
+				result.Data["diff"] = fileDiffData(path, before, after)
+			}
+		}
+		return result, nil
 	}
 
 	// Create file if needed (best-effort)
diff --git a/modules_file_test.go b/modules_file_test.go
index 0610cb2..40dbcdf 100644
--- a/modules_file_test.go
+++ b/modules_file_test.go
@@ -1045,6 +1045,29 @@ func TestModulesFile_ModuleBlockinfile_Good_RemoveBlock(t *testing.T) {
 	assert.True(t, mock.hasExecuted(`sed -i '/.*BEGIN ANSIBLE MANAGED BLOCK/,/.*END ANSIBLE MANAGED BLOCK/d'`))
 }
 
+func TestModulesFile_ModuleBlockinfile_Good_RemoveBlockWithBackup(t *testing.T) {
+	e, mock := newTestExecutorWithMock("host1")
+	mock.addFile("/etc/config", []byte("before\n# BEGIN ANSIBLE MANAGED BLOCK\nmanaged\n# END ANSIBLE MANAGED BLOCK\nafter\n"))
+
+	result, err := moduleBlockinfileWithClient(e, mock, map[string]any{
+		"path":   "/etc/config",
+		"state":  "absent",
+		"backup": true,
+	})
+
+	require.NoError(t, err)
+	assert.True(t, result.Changed)
+	require.NotNil(t, result.Data)
+
+	backupPath, ok := result.Data["backup_file"].(string)
+	require.True(t, ok)
+	assert.Contains(t, backupPath, "/etc/config.")
+
+	backupContent, err := mock.Download(context.Background(), backupPath)
+	require.NoError(t, err)
+	assert.Equal(t, []byte("before\n# BEGIN ANSIBLE MANAGED BLOCK\nmanaged\n# END ANSIBLE MANAGED BLOCK\nafter\n"), backupContent)
+}
+
 func TestModulesFile_ModuleBlockinfile_Good_RemoveBlockWithCustomMarkerBeginAndEnd(t *testing.T) {
 	e, mock := newTestExecutorWithMock("host1")