diff --git a/misc/IL2C.Toolchain.gcc4.mingw32/build/IL2C.Toolchain.gcc4.mingw32.targets b/misc/IL2C.Toolchain.gcc4.mingw32/build/IL2C.Toolchain.gcc4.mingw32.targets
index 4a615db6..078d1c2e 100644
--- a/misc/IL2C.Toolchain.gcc4.mingw32/build/IL2C.Toolchain.gcc4.mingw32.targets
+++ b/misc/IL2C.Toolchain.gcc4.mingw32/build/IL2C.Toolchain.gcc4.mingw32.targets
@@ -18,6 +18,7 @@
       <IL2CNativeCompilerConditionalFlags Condition="'$(IL2CConfiguration)' == 'Debug'">$(_IL2C_GCC_DebugFlags)</IL2CNativeCompilerConditionalFlags>
       <IL2CNativeCompilerConditionalFlags Condition="'$(IL2CConfiguration)' == 'Release'">$(_IL2C_GCC_ReleaseFlags)</IL2CNativeCompilerConditionalFlags>
       <IL2CNativeMainTemplatePath Condition="'$(OutputType)' == 'WinExe'">$(_IL2C_WinExeMainTemplatePath)</IL2CNativeMainTemplatePath>
+      <IL2CNativeCompilerRequiredFlags Condition="'$(OutputType)' == 'WinExe'">$(IL2CNativeCompilerRequiredFlags) -mwindows</IL2CNativeCompilerRequiredFlags>
     </PropertyGroup>
   
   </Target>
diff --git a/misc/IL2C.Toolchain.gcc4.mingw32/src/_main_winexe_template.c_ b/misc/IL2C.Toolchain.gcc4.mingw32/src/_main_winexe_template.c_
index 4cd6c629..f24c0567 100644
--- a/misc/IL2C.Toolchain.gcc4.mingw32/src/_main_winexe_template.c_
+++ b/misc/IL2C.Toolchain.gcc4.mingw32/src/_main_winexe_template.c_
@@ -8,6 +8,7 @@
 ////////////////////////////////////////////////////////////////////////////
 
 #include <il2c.h>
+#include <windows.h>
 #include <{headerName}>
 
 #ifdef __cplusplus