diff --git a/library/platform_util.c b/library/platform_util.c
index a86b07f..df34167 100644
--- a/library/platform_util.c
+++ b/library/platform_util.c
@@ -66,10 +66,10 @@
 #include <time.h>
 #if !defined(_WIN32) && (defined(unix) || \
     defined(__unix) || defined(__unix__) || (defined(__APPLE__) && \
-    defined(__MACH__)))
+    defined(__MACH__)) || defined(__midipix__))
 #include <unistd.h>
 #endif /* !_WIN32 && (unix || __unix || __unix__ ||
-        * (__APPLE__ && __MACH__)) */
+        * (__APPLE__ && __MACH__)) || __midipix__ */
 
 #if !((defined(_POSIX_VERSION) && _POSIX_VERSION >= 200809L) ||     \
     (defined(_POSIX_THREAD_SAFE_FUNCTIONS) &&                     \