diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9372ac1..a14dbc6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Build system for the libprof library for gint
 
 cmake_minimum_required(VERSION 3.16)
-project(libprof VERSION 2.2.1 LANGUAGES C)
+project(libprof VERSION 2.4.0 LANGUAGES C)
 find_package(Gint 2.2.1 REQUIRED)
 
 configure_file(libprof.h libprof.h)
diff --git a/libprof.c b/libprof.c
index 6751e39..b53d44b 100644
--- a/libprof.c
+++ b/libprof.c
@@ -22,7 +22,8 @@ int prof_init(void)
 	int timer = -1;
 	for(int t = 2; t >= 0 && timer == -1; t--)
 	{
-		timer = timer_setup(t | TIMER_Pphi_4, 0xffffffff, callback);
+		timer = timer_configure(t | TIMER_Pphi_4, 0xffffffff,
+			GINT_CALL(callback));
 	}
 	if(timer == -1)
 	{