diff --git a/samples/win32/build.bat b/samples/win32/build.bat
index c53f3f570cd..7f681c329d9 100644
--- a/samples/win32/build.bat
+++ b/samples/win32/build.bat
@@ -6,5 +6,4 @@ if "%TARGET%" == "" set TARGET=mingw
 
 set "LFLAGS=-Wl,--subsystem,windows"
 
-call cinterop -def "%DIR%\src\main\c_interop\win32.def" -target "%TARGET%" -o win32 || exit /b
-call konanc -target "%TARGET%" "%DIR%\src\main\kotlin\MessageBox.kt" -library win32 -linkerOpts "%LFLAGS%" -opt -o MessageBox || exit /b
+call konanc -target "%TARGET%" "%DIR%\src\main\kotlin\MessageBox.kt" -linkerOpts "%LFLAGS%" -opt -o MessageBox || exit /b
diff --git a/samples/win32/src/main/c_interop/win32.def b/samples/win32/src/main/c_interop/win32.def
deleted file mode 100644
index f616c5eda48..00000000000
--- a/samples/win32/src/main/c_interop/win32.def
+++ /dev/null
@@ -1,3 +0,0 @@
-headers = windows.h
-headerFilter = win**.h
-compilerOpts = -DUNICODE -Wno-incompatible-pointer-types -Wno-deprecated-declarations
\ No newline at end of file
diff --git a/samples/win32/src/main/kotlin/MessageBox.kt b/samples/win32/src/main/kotlin/MessageBox.kt
index 9109bbeed9e..537e26b27e2 100644
--- a/samples/win32/src/main/kotlin/MessageBox.kt
+++ b/samples/win32/src/main/kotlin/MessageBox.kt
@@ -1,6 +1,6 @@
-import win32.*
+import platform.windows.*
 
 fun main(args: Array<String>) {
     MessageBoxW(null, "Konan говорит:\nЗДРАВСТВУЙ МИР!\n",
             "Заголовок окна", MB_YESNOCANCEL or MB_ICONQUESTION)
-}
\ No newline at end of file
+}