diff --git a/nvm.sh b/nvm.sh
index 70b6c7c..7f8d13a 100644
--- a/nvm.sh
+++ b/nvm.sh
@@ -866,9 +866,6 @@ nvm() {
     return
   fi
 
-  # Try to figure out the os and arch for binary fetching
-  local os
-  local arch
   local GREP_OPTIONS
   GREP_OPTIONS=''