diff --git a/CentOS6.md b/CentOS6.md
index e263fc3..1d404bb 100644
--- a/CentOS6.md
+++ b/CentOS6.md
@@ -15,8 +15,9 @@ _Note: Haskell Platform v7.10.3 and v8.0.1 requires glibc v2.14 but CentOS 6 has
     popd
     rm -r "$dir"
 # Install shellcheck
+    cabal update
     cabal install shellcheck
 
 # Place it in a global directory
-    cp .cabal/bin/shellcheck /usr/local/bin # portable to other el6 systems without Haskell
+    cp ~/.cabal/bin/shellcheck /usr/local/bin # portable to other el6 systems without Haskell