diff --git a/yc.fish b/yc.fish
index d3079bf..00d336a 100644
--- a/yc.fish
+++ b/yc.fish
@@ -19,7 +19,7 @@ function __yc_perform_completion
     __yc_debug "last arg: $lastArg"
 
     # Disable ActiveHelp which is not supported for fish shell
-    set -l requestComp "yc_ACTIVE_HELP=0 $args[1] __complete $args[2..-1] $lastArg"
+    set -l requestComp "YC_ACTIVE_HELP=0 $args[1] __complete $args[2..-1] $lastArg"
 
     __yc_debug "Calling $requestComp"
     set -l results (eval $requestComp 2> /dev/null)