diff --git a/CMakeLists.txt b/CMakeLists.txt
index 807924b..e055964 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -32,6 +32,11 @@ add_library(libossp OBJECT
 	"ossp-util.h"
 )
 
+target_compile_definitions(libossp
+	PUBLIC
+		"OSSP_VERSION=\"${PROJECT_VERSION}\""
+)
+
 # Daemon
 if(daemon)
 	add_executable(osspd "osspd.c")
diff --git a/ossp.h b/ossp.h
index 8fdd393..d90bf2b 100644
--- a/ossp.h
+++ b/ossp.h
@@ -15,7 +15,6 @@
 #include <semaphore.h>
 #include <sys/soundcard.h>
 
-#define OSSP_VERSION		"1.3.2"
 #define OSSP_CMD_MAGIC		0xdeadbeef
 #define OSSP_REPLY_MAGIC	0xbeefdead
 #define OSSP_NOTIFY_MAGIC	0xbebebebe