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-rw-r--r--Completion/Unix/Command/_tail2
1 files changed, 1 insertions, 1 deletions
diff --git a/Completion/Unix/Command/_tail b/Completion/Unix/Command/_tail
index 89e9cfbae..4e6422621 100644
--- a/Completion/Unix/Command/_tail
+++ b/Completion/Unix/Command/_tail
@@ -56,7 +56,7 @@ case $state in
     sign='signs:sign:((+\:"start at the specified byte/line"'
     sign+=' -\:"output the last specified bytes/lines (default)"))'
     digit='digits:digit:(0 1 2 3 4 5 6 7 8 9)'
-    if compset -P '[0-9]##'; then
+    if compset -P '(-|+|)[0-9]##'; then
       _alternative $mlt $digit && ret=0
     elif [[ -z $PREFIX ]]; then
       _alternative $sign $digit && ret=0