diff --git a/ao-play-async/CMakeLists.txt b/ao-play-async/CMakeLists.txt
index 4d75868..0b36660 100644
--- a/ao-play-async/CMakeLists.txt
+++ b/ao-play-async/CMakeLists.txt
@@ -5,6 +5,8 @@ project(ao-play-async LANGUAGES C)
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
+include_directories(${CMAKE_CURRENT_SOURCE_DIR}/..)
+
 add_library(ao-play-async SHARED
     ao_playasync.c
     ao_playasync.h
diff --git a/ao-play-async/ao_playasync.c b/ao-play-async/ao_playasync.c
index f751f4a..3b53612 100644
--- a/ao-play-async/ao_playasync.c
+++ b/ao-play-async/ao_playasync.c
@@ -1,4 +1,5 @@
 #include "ao_playasync.h"
+#include "../ffi_version.h"
 
 #ifdef WIN32
 #include <windows.h>
@@ -326,7 +327,7 @@ static DWORD run(LPVOID arg)
 
 int ao_async_version()
 {
-  return VERSION;
+  return ffi_version();
 }
 
 #ifdef _WIN32
@@ -702,9 +703,6 @@ void ao_pause_async(void *ao_handle, int paused)
     MUTEX_UNLOCK(h->mutex);
 }
 
-
-
-
 int ao_real_output_bits_async(void *handle)
 {
     AO_Handle *h = (AO_Handle *) handle;
diff --git a/ao-play-async/ao_playasync.h b/ao-play-async/ao_playasync.h
index c2aaf59..539c43f 100644
--- a/ao-play-async/ao_playasync.h
+++ b/ao-play-async/ao_playasync.h
@@ -11,7 +11,9 @@
 #define AOPLAYASYNC_EXPORT extern
 #endif
 
-#define VERSION 3
+#define VERSION_MAJOR 1
+#define VERSION_MINOR 0
+#define VERSION_PATCH 0
 
 typedef enum {
     ao = 1,
diff --git a/ffi_version.h b/ffi_version.h
new file mode 100644
index 0000000..2513022
--- /dev/null
+++ b/ffi_version.h
@@ -0,0 +1,10 @@
+#ifndef __FFI_VERSION__
+#define __FFI_VERSION__
+
+#define VERSION_MAJOR 1
+#define VERSION_MINOR 0
+#define VERSION_PATCH 0
+
+#define ffi_version() ((VERSION_MAJOR << 16) + (VERSION_MINOR << 8) + VERSION_PATCH)
+
+#endif
diff --git a/ffmpeg-audio/CMakeLists.txt b/ffmpeg-audio/CMakeLists.txt
index 229f987..db2c3dd 100644
--- a/ffmpeg-audio/CMakeLists.txt
+++ b/ffmpeg-audio/CMakeLists.txt
@@ -8,6 +8,7 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 add_library(ffmpeg_audio SHARED
     ffmpeg_audio.cpp
     ffmpeg_audio.h
+    ../ffi_version.h
 )
 
 add_executable(demo_ffmpeg_audio
diff --git a/ffmpeg-audio/ffmpeg_audio.cpp b/ffmpeg-audio/ffmpeg_audio.cpp
index 589f9ab..b948be7 100644
--- a/ffmpeg-audio/ffmpeg_audio.cpp
+++ b/ffmpeg-audio/ffmpeg_audio.cpp
@@ -13,6 +13,7 @@
  */
 
 #include "ffmpeg_audio.h"
+#include "../ffi_version.h"
 
 #include <algorithm>
 #include <cstdint>
@@ -1021,3 +1022,8 @@ const char *fmpg_int_version2string(int ver)
 
     return version;
 }
+
+int fmpg_version()
+{
+    return ffi_version();
+}
diff --git a/ffmpeg-audio/ffmpeg_audio.h b/ffmpeg-audio/ffmpeg_audio.h
index 7dbd4aa..0cdda6e 100644
--- a/ffmpeg-audio/ffmpeg_audio.h
+++ b/ffmpeg-audio/ffmpeg_audio.h
@@ -150,6 +150,7 @@ FFMPEG_EXTERN int64_t fmpg_sample_position(fmpg_instance *instance);
 /* Approximate start time of the current decoded block in seconds. */
 FFMPEG_EXTERN double fmpg_timecode(fmpg_instance *instance);
 
+FFMPEG_EXTERN int fmpg_version();
 FFMPEG_EXTERN const char *fmpg_ffmpeg_version();
 FFMPEG_EXTERN const char *fmpg_int_version2string(int ver);
 FFMPEG_EXTERN int fmpg_compatible_ffmpeg();
diff --git a/lib/linux-x86_64.zip b/lib/linux-x86_64.zip
index 4662daf..e9a1064 100644
Binary files a/lib/linux-x86_64.zip and b/lib/linux-x86_64.zip differ