diff --git a/appveyor.yml b/appveyor.yml
index 97f0043c..1df6df1b 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -34,10 +34,13 @@ build_script:
     cd \projects\i2pd
 
     echo "bitness=%bitness%; type=%type%; variant=%variant%"
+- if "%x64%" == "1"(
+    C:\msys64\usr\bin\bash -lc "make USE_UPNP=YES -I/mingw64/include/"
+  ) else (
+    C:\msys64\usr\bin\bash -lc "make USE_UPNP=YES -I/mingw32/include/"
+  )
 
-    C:\msys64\usr\bin\bash -lc "make USE_UPNP=YES"
-
-    7z a -tzip -mx9 -mmt i2pd-mingw-win%bitness%.zip i2pd.exe
+- cmd: 7z a -tzip -mx9 -mmt i2pd-mingw-win%bitness%.zip i2pd.exe
 test: off
 artifacts:
 - path: i2pd-mingw-win64.zip