diff --git a/nvm.sh b/nvm.sh
index 6de38c1..2ef65bd 100644
--- a/nvm.sh
+++ b/nvm.sh
@@ -196,7 +196,7 @@
       PATTERN="$PATTERN."
     fi
     VERSIONS=`find "$NVM_DIR/" -maxdepth 1 -type d -name "$PATTERN*" -exec basename '{}' ';' \
-      | sort -t. -u -k 1.2,1n -k 2,2n -k 3,3n | \grep -v '^ *\.'`
+      | sort -t. -u -k 1.2,1n -k 2,2n -k 3,3n | \grep -v '^ *\.' | \grep -e '^v'`
   fi
   if [ -z "$VERSIONS" ]; then
     echo "N/A"
diff --git "a/test/fast/Listing versions/Running \"nvm ls node\" should return a nonzero exit code when not found" "b/test/fast/Listing versions/Running \"nvm ls node\" should return a nonzero exit code when not found"
new file mode 100755
index 0000000..f7d68f7
--- /dev/null
+++ "b/test/fast/Listing versions/Running \"nvm ls node\" should return a nonzero exit code when not found"
@@ -0,0 +1,7 @@
+ #!/bin/sh
+
+. ../../../nvm.sh
+
+nvm ls node
+[ "$?" = "3" ]
+