diff --git a/functions/nvm.fish b/functions/nvm.fish
index ff87fd4..ec2397b 100644
--- a/functions/nvm.fish
+++ b/functions/nvm.fish
@@ -19,6 +19,6 @@ function nvm
   end
 
   if test $argv[1] = "use"; or test $argv[1] = "install"
-    set -g NVM_HAS_RUN 1
+    set -gx NVM_HAS_RUN 1
   end
 end