diff --git a/inc/threads.h b/inc/threads.h
index 5e527ef..8acbf32 100644
--- a/inc/threads.h
+++ b/inc/threads.h
@@ -1,7 +1,5 @@
 #pragma once
 
-#include <stdatomic.h>
-
 #if defined(_WIN32)
     #define _Thread_local __declspec(thread)
 #endif
@@ -38,7 +36,7 @@
         // Done to handle recursive mutexes
         unsigned long recursion;
         unsigned long owner;
-        atomic_int counter;
+        _Atomic(int) counter;
         void* semaphore;
     } mtx_t;
 #else
diff --git a/src/ciabatta.c b/src/ciabatta.c
index 2f99cb1..70b518a 100644
--- a/src/ciabatta.c
+++ b/src/ciabatta.c
@@ -10,6 +10,7 @@
 #include <math.h>
 #include <signal.h>
 #include <stdarg.h>
+#include <stdatomic.h>
 #include <stdbool.h>
 #include <stdint.h>
 #include <stdio.h>