diff --git a/bin/git-line-summary b/bin/git-line-summary
index 74c0166..940bd73 100755
--- a/bin/git-line-summary
+++ b/bin/git-line-summary
@@ -9,7 +9,7 @@ single_file() {
   while read data
   do
     if [[ $(file "$data") = *text* ]]; then
-      git blame --line-porcelain "$data" 2>/dev/null | grep "^author\ " | sed -n 's/^author //p';
+      git blame --line-porcelain "$data" 2>/dev/null | grep "^author\ " | LC_ALL=C sed -n 's/^author //p';
     fi
   done
 }
diff --git a/bin/git-summary b/bin/git-summary
index 33f21be..7643f10 100755
--- a/bin/git-summary
+++ b/bin/git-summary
@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 
+
 SUBDIRECTORY_OK=Yes
 source "$(git --exec-path)/git-sh-setup"
 cd_to_toplevel
@@ -63,7 +64,7 @@ authors() {
 #
 
 repository_age() {
-  git log --reverse --pretty=oneline --format="%ar" | head -n 1 | sed 's/ago//'
+  git log --reverse --pretty=oneline --format="%ar" | head -n 1 | LC_ALL=C sed 's/ago//'
 }
 
 # summary