diff --git a/util/msys2_install.sh b/util/msys2_install.sh
index a0548ad9bc..fcb4882494 100755
--- a/util/msys2_install.sh
+++ b/util/msys2_install.sh
@@ -14,8 +14,9 @@ source "$dir/win_shared_install.sh"
 function install_avr {
     rm -f -r "$avrtools"
     wget "http://ww1.microchip.com/downloads/en/DeviceDoc/avr8-gnu-toolchain-3.6.1.1752-win32.any.x86.zip"
-    7z x avr8-gnu-toolchain-3.6.1.1752-win32.any.x86.zip
-    mv avr8-gnu-toolchain-win32_x86/ avr8-gnu-toolchain
+    echo "Extracting AVR toolchain..."
+	unzip -q avr8-gnu-toolchain-3.6.1.1752-win32.any.x86.zip
+	mv avr8-gnu-toolchain-win32_x86/ avr8-gnu-toolchain
     rm __MACOSX -R
     rm avr8-gnu-toolchain-3.6.1.1752-win32.any.x86.zip
     pacman --needed -S mingw-w64-x86_64-avrdude