diff --git a/.github/ISSUE_TEMPLATE.md b/.github/ISSUE_TEMPLATE.md
index a6185c813..1e2677695 100644
--- a/.github/ISSUE_TEMPLATE.md
+++ b/.github/ISSUE_TEMPLATE.md
@@ -8,7 +8,7 @@ Please tell us which operating system and terminal you are using. The output of
 
 Please tell us if you tried fish without third-party customizations by executing this command and whether it affected the behavior you are reporting:
 
-  sh -c 'env HOME=$(mktemp -d) XDG_CONFIG_HOME= fish'
+  sh -c 'env HOME=$(mktemp -d) XDG_CONFIG_HOME= XDG_DATA_DIRS= fish'
 
 Tell us how to reproduce the problem. Including an asciinema.org recording is useful for problems that involve the visual display of fish output such as its prompt.
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