diff --git a/build_scripts/Windows-msys2/build/build.bat b/build_scripts/Windows-msys2/build/build.bat
index bf68f3e20..e72ab3d1d 100644
--- a/build_scripts/Windows-msys2/build/build.bat
+++ b/build_scripts/Windows-msys2/build/build.bat
@@ -22,7 +22,7 @@ if not "%ParamNoupdate%"=="1" (
 	%EnvMSYS2Cmd% "pacman --noconfirm --needed -S mingw-w64-%RsMSYS2Architecture%-json-c mingw-w64-%RsMSYS2Architecture%-libbotan"
 
 	:: Webui
-	if "%ParamWebui%"=="1" %EnvMSYS2Cmd% "pacman --noconfirm --needed -S mingw-w64-%RsMSYS2Architecture%-doxygen"
+	if "%ParamWebui%"=="1" %EnvMSYS2Cmd% "pacman --noconfirm --needed -S mingw-w64-%RsMSYS2Architecture%-doxygen mingw-w64-%RsMSYS2Architecture%-asio"
 
 	:: Plugins
 	if "%ParamPlugins%"=="1" %EnvMSYS2Cmd% "pacman --noconfirm --needed -S mingw-w64-%RsMSYS2Architecture%-speex mingw-w64-%RsMSYS2Architecture%-speexdsp mingw-w64-%RsMSYS2Architecture%-curl mingw-w64-%RsMSYS2Architecture%-libxslt mingw-w64-%RsMSYS2Architecture%-opencv mingw-w64-%RsMSYS2Architecture%-ffmpeg"