diff --git a/ChangeLog.d/midipix-support.txt b/ChangeLog.d/midipix-support.txt
new file mode 100644
index 000000000..53599abe4
--- /dev/null
+++ b/ChangeLog.d/midipix-support.txt
@@ -0,0 +1,2 @@
+Features
+   * Add support for midipix, a POSIX layer for Microsoft Windows.
diff --git a/library/entropy_poll.c b/library/entropy_poll.c
index c9b2c95c6..8b4a5af9e 100644
--- a/library/entropy_poll.c
+++ b/library/entropy_poll.c
@@ -52,7 +52,7 @@
 
 #if !defined(unix) && !defined(__unix__) && !defined(__unix) && \
     !defined(__APPLE__) && !defined(_WIN32) && !defined(__QNXNTO__) && \
-    !defined(__HAIKU__)
+    !defined(__HAIKU__) && !defined(__midipix__)
 #error "Platform entropy sources only work on Unix and Windows, see MBEDTLS_NO_PLATFORM_ENTROPY in config.h"
 #endif
 
@@ -95,7 +95,7 @@ int mbedtls_platform_entropy_poll( void *data, unsigned char *output, size_t len
  * Since there is no wrapper in the libc yet, use the generic syscall wrapper
  * available in GNU libc and compatible libc's (eg uClibc).
  */
-#if defined(__linux__) && defined(__GLIBC__)
+#if ((defined(__linux__) && defined(__GLIBC__)) || defined(__midipix__))
 #include <unistd.h>
 #include <sys/syscall.h>
 #if defined(SYS_getrandom)
@@ -113,7 +113,7 @@ static int getrandom_wrapper( void *buf, size_t buflen, unsigned int flags )
     return( syscall( SYS_getrandom, buf, buflen, flags ) );
 }
 #endif /* SYS_getrandom */
-#endif /* __linux__ */
+#endif /* __linux__ || __midipix__ */
 
 #include <stdio.h>
 
diff --git a/library/net_sockets.c b/library/net_sockets.c
index 5c1e665ea..8258aea73 100644
--- a/library/net_sockets.c
+++ b/library/net_sockets.c
@@ -34,7 +34,7 @@
 
 #if !defined(unix) && !defined(__unix__) && !defined(__unix) && \
     !defined(__APPLE__) && !defined(_WIN32) && !defined(__QNXNTO__) && \
-    !defined(__HAIKU__)
+    !defined(__HAIKU__) && !defined(__midipix__)
 #error "This module only works on Unix and Windows, see MBEDTLS_NET_C in config.h"
 #endif
 
diff --git a/library/timing.c b/library/timing.c
index 009516a6e..4a654222a 100644
--- a/library/timing.c
+++ b/library/timing.c
@@ -40,7 +40,7 @@
 
 #if !defined(unix) && !defined(__unix__) && !defined(__unix) && \
     !defined(__APPLE__) && !defined(_WIN32) && !defined(__QNXNTO__) && \
-    !defined(__HAIKU__)
+    !defined(__HAIKU__) && !defined(__midipix__)
 #error "This module only works on Unix and Windows, see MBEDTLS_TIMING_C in config.h"
 #endif