diff --git a/conf.d/forgit.plugin.fish b/conf.d/forgit.plugin.fish
index 9d98407..e79bdfd 100644
--- a/conf.d/forgit.plugin.fish
+++ b/conf.d/forgit.plugin.fish
@@ -257,7 +257,7 @@ function forgit::checkout::branch -d "git checkout branch selector" --argument-n
         $FORGIT_CHECKOUT_BRANCH_FZF_OPTS
         "
 
-    set cmd "git branch --color=always --all | sort -k1.1,1.1 -r"
+    set cmd "git branch --color=always --all | LC_ALL=C sort -k1.1,1.1 -rs"
     set branch (eval "$cmd" | FZF_DEFAULT_OPTS="$opts" fzf | awk '{print $1}')
 
     test -z "$branch" && return 1
diff --git a/forgit.plugin.zsh b/forgit.plugin.zsh
index b7a093c..5442c82 100755
--- a/forgit.plugin.zsh
+++ b/forgit.plugin.zsh
@@ -235,7 +235,7 @@ forgit::checkout::branch() {
     forgit::inside_work_tree || return 1
     [[ $# -ne 0 ]] && { git checkout -b "$@"; return $?; }
     local cmd preview opts branch
-    cmd="git branch --color=always --all | sort -k1.1,1.1 -r"
+    cmd="git branch --color=always --all | LC_ALL=C sort -k1.1,1.1 -rs"
     preview="git log {1} --graph --pretty=format:'$forgit_log_format' --color=always --abbrev-commit --date=relative"
     opts="
         $FORGIT_FZF_DEFAULT_OPTS