diff --git a/toolchain/haxe-target-threads.xml b/toolchain/haxe-target-threads.xml
index 445d9acf6..bfd92ae26 100644
--- a/toolchain/haxe-target-threads.xml
+++ b/toolchain/haxe-target-threads.xml
@@ -9,7 +9,8 @@
 
   <section if="windows">
     <file name="src/hx/thread/CountingSemaphore.win32.cpp"/>
-    <file name="src/hx/thread/ThreadImpl.win32.cpp"/>
+    <file name="src/hx/thread/ThreadImpl.win32.cpp" unless="mingw" />
+    <file name="src/hx/thread/ThreadImpl.noop.cpp" if="mingw" />
   </section>
 
   <section if="apple">
@@ -27,4 +28,4 @@
     <file name="src/hx/thread/ThreadImpl.noop.cpp"/>
   </section>
 
-</xml>
\ No newline at end of file
+</xml>
diff --git a/toolchain/haxe-target.xml b/toolchain/haxe-target.xml
index 5bae6b489..86da1a8ce 100644
--- a/toolchain/haxe-target.xml
+++ b/toolchain/haxe-target.xml
@@ -172,7 +172,6 @@
   <depend name="${HXCPP}/src/hx/Unicase.h"/>
   <depend name="${HXCPP}/src/hx/gc/GcRegCapture.h"/>
   <depend name="${HXCPP}/src/hx/thread/ThreadImpl.hpp"/>
-  <compilerflag value="-D_CRT_SECURE_NO_DEPRECATE"/>
 
   <compilerflag value="-DHX_UNDEFINE_H" />