diff --git a/conf.d/sdk.fish b/conf.d/sdk.fish
index 91677cb..a8b25ac 100644
--- a/conf.d/sdk.fish
+++ b/conf.d/sdk.fish
@@ -10,7 +10,7 @@
 # Account for custom install locations
 if set -q __sdkman_custom_dir
     set -gx SDKMAN_DIR "$__sdkman_custom_dir"
-else
+else if not set -q SDKMAN_DIR
     # This is the default location:
     set -gx SDKMAN_DIR "$HOME/.sdkman"
 end