diff --git a/build/bakefiles/files.bkl b/build/bakefiles/files.bkl
index c0cd265f51..0714f762a4 100644
--- a/build/bakefiles/files.bkl
+++ b/build/bakefiles/files.bkl
@@ -2370,7 +2370,11 @@ IMPORTANT: please read docs/tech/tn0016.txt before modifying this file!
     </set>
     <set var="BASE_PLATFORM_SRC" hints="files">
         <if cond="PLATFORM_UNIX=='1'">$(BASE_UNIX_SRC)</if>
-        <if cond="PLATFORM_WIN32=='1'">$(BASE_WIN32_SRC) $(BASE_WINCE_SRC)</if>
+        <!-- 
+            workaround until Bakefiles do not support more than one platform 
+            for Open Watcom (DOS(MGL)/MSW) - do not include WIN32 base for DOS application
+        -->
+        <if cond="PLATFORM_WIN32=='1' and TOOLKIT!='MGL'">$(BASE_WIN32_SRC) $(BASE_WINCE_SRC)</if>
         <if cond="PLATFORM_MACOSX=='1'">$(BASE_MACOSX_SRC)</if>
         <if cond="PLATFORM_OS2=='1'">$(BASE_OS2_SRC)</if>
     </set>