diff --git a/CMakeLists.txt b/CMakeLists.txt
index 49f89bb..c38b2df 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -21,7 +21,7 @@ target_include_directories(mach_detours
 
 
 add_executable(mach_detours_sample
-        sample/main.cpp
+        sample/main.c
 )
 target_link_libraries(mach_detours_sample
         PRIVATE mach_detours
diff --git a/sample/main.cpp b/sample/main.c
similarity index 70%
rename from sample/main.cpp
rename to sample/main.c
index 1a380a1..88a7d94 100644
--- a/sample/main.cpp
+++ b/sample/main.c
@@ -1,7 +1,7 @@
 // Copyright (c) Lysann Tranvouez.  All rights reserved.
 
-#include <cassert>
-#include <cstring>
+#include <assert.h>
+#include <string.h>
 
 #include "mach_detours.h"
 
@@ -22,7 +22,7 @@ int main(int argc, const char* argv[])
     assert(counter == 0);
 
     detour_transaction_begin();
-    detour_attach(reinterpret_cast<detour_func_t*>(&real_strerror), reinterpret_cast<detour_func_t>(my_strerror));
+    detour_attach((detour_func_t*)&real_strerror, (detour_func_t)my_strerror);
     detour_transaction_commit();
 
     assert(counter == 0);
@@ -30,7 +30,7 @@ int main(int argc, const char* argv[])
     assert(counter == 1);
 
     detour_transaction_begin();
-    detour_detach(reinterpret_cast<detour_func_t*>(&real_strerror), reinterpret_cast<detour_func_t>(my_strerror));
+    detour_detach((detour_func_t*)&real_strerror, (detour_func_t)my_strerror);
     detour_transaction_commit();
 
     assert(counter == 1);