diff --git a/.appveyor.yml b/.appveyor.yml
index 0ca1e9a..a4a3a54 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -45,11 +45,11 @@ before_build:
     %DEPENDS% copy SDL2_ttf-2.0.14\%ARCH%\bin\*.dll %PREFIX%\lib > nul
 
   # Lua
-  - ps: (new-object System.Net.WebClient).Downloadfile("https://sourceforge.net/projects/luabinaries/files/5.3.4/Windows%20Libraries/Static/lua-5.3.4_Win32_vc14_lib.zip/download", "C:\lua\lua-5.3.4_Win32_vc14_lib.zip")
+  - ps: (new-object System.Net.WebClient).Downloadfile("https://sourceforge.net/projects/luabinaries/files/5.3.4/Windows%20Libraries/Static/lua-5.3.4_Win32_vc14_lib.zip/download", "c:\lua\lua-5.3.4_Win32_vc14_lib.zip")
   - |-
-    %DEPENDS% 7z x C:\lua\lua-5.3.4_Win32_vc14_lib.zip -o"C:\lua" > nul
-    %DEPENDS% copy C:\lua\include\* %PREFIX%\include > nul
-    %DEPENDS% copy C:\lua\lua53.lib %PREFIX%\lib > nul
+    %DEPENDS% 7z x "c:\lua\lua-5.3.4_Win32_vc14_lib.zip" -o"c:\lua" > nul
+    %DEPENDS% copy c:\lua\include\* %PREFIX%\include > nul
+    %DEPENDS% copy c:\lua\lua53.lib %PREFIX%\lib > nul
 
 build_script:
   - |-