diff --git a/share/functions/__fish_apropos.fish b/share/functions/__fish_apropos.fish
index 0137d227f..f0b3bb906 100644
--- a/share/functions/__fish_apropos.fish
+++ b/share/functions/__fish_apropos.fish
@@ -6,7 +6,7 @@ end
 
 # Check for macOS Catalina or above.
 if test (__fish_uname) = Darwin
-    and test (string match -r "(\d+)" "$(uname -r)") -ge 19
+    and test (string match -r "^\d+" "$(uname -r)") -ge 19
     and test -x /usr/libexec/makewhatis
 
     set -l dir