diff --git a/src/common/printer.c b/src/common/printer.c
index 586c7ca..c619f1b 100644
--- a/src/common/printer.c
+++ b/src/common/printer.c
@@ -1,9 +1,11 @@
 #ifdef _WIN32
   #define NOMINMAX
   #include <Windows.h>
-#else
+#elif defined __linux__
   #define _POSIX_C_SOURCE 199309L
   #include <unistd.h>
+#elif defined __APPLE__
+  #include <unistd.h>
 #endif
 
 #include <signal.h>