diff --git a/share/completions/delta.fish b/share/completions/delta.fish
index 6b08a1986..b90e2dba4 100644
--- a/share/completions/delta.fish
+++ b/share/completions/delta.fish
@@ -1 +1,2 @@
-delta --generate-completion fish | source
+# Old versions of fish do not have a --generate-completion option!
+delta --generate-completion fish 2>/dev/null | source