diff --git a/dotfiles/lib/python/git_diff_replacing.py b/dotfiles/lib/python/git_diff_replacing.py
index feaf4cdc..700535a9 100755
--- a/dotfiles/lib/python/git_diff_replacing.py
+++ b/dotfiles/lib/python/git_diff_replacing.py
@@ -15,7 +15,6 @@ class GitDiffReplacer(object):
         self.replacing_string = replacing_string
         self.verbose = verbose
 
-
     @property
     def modified_files_command(self):
         return linecmd('git diff {} {} --name-only', self.source_ref,
diff --git a/dotfiles/lib/shellrc/functions.sh b/dotfiles/lib/shellrc/functions.sh
index 0c2d4b19..74638233 100644
--- a/dotfiles/lib/shellrc/functions.sh
+++ b/dotfiles/lib/shellrc/functions.sh
@@ -125,3 +125,13 @@ function git_diff_replacing() {
     test -z $debug || git diff $original_sha $new_sha --name-only | grep -v "$replacing"
     git diff $original_sha $new_sha --name-only | grep -v "$replacing" | xargs -I filename sh -c "git diff $original_sha:filename $new_sha:"$replace_sha_string
 }
+
+function git_reset_author() {
+    git filter-branch -f --env-filter '
+if test "$GIT_COMMITTER_NAME" = "Ivan Malison"
+then
+    GIT_COMMITTER_EMAIL="IvanMalison@gmail.com"
+    export GIT_COMMITTER_EMAIL
+fi
+' -- --all
+}
diff --git a/dotfiles/tmux.conf b/dotfiles/tmux.conf
index 0cf6b2ee..99e586e9 100644
--- a/dotfiles/tmux.conf
+++ b/dotfiles/tmux.conf
@@ -1,4 +1,4 @@
-unbind C-o
+unbind C-g
 set -g prefix C-b
 bind-key C-b send-prefix