diff --git a/twinstall.h b/twinstall.h
new file mode 100644
index 0000000..8fd940e
--- /dev/null
+++ b/twinstall.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef RECOVERY_INSTALL_H_
+#define RECOVERY_INSTALL_H_
+
+#include "common.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int TWinstall_zip(const char* path, int* wipe_cache);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // RECOVERY_INSTALL_H_