diff --git a/nix/pkgs/tmux-sessionizer/add-tmux-file.patch b/nix/pkgs/tmux-sessionizer/add-tmux-file.patch
new file mode 100644
index 00000000..f2dd5a2a
--- /dev/null
+++ b/nix/pkgs/tmux-sessionizer/add-tmux-file.patch
@@ -0,0 +1,15 @@
+diff --git a/tmux-sessionizer b/tmux-sessionizer
+index fa1bec5..c9094e7 100755
+--- a/tmux-sessionizer
++++ b/tmux-sessionizer
+@@ -12,7 +12,9 @@ has_session() {
+ }
+ 
+ hydrate() {
+-    if [ -f $2/.tmux-sessionizer ]; then
++    if [ -f $2/.tmux ]; then
++        tmux send-keys -t $1 "source $2/.tmux" c-M
++    elif [ -f $2/.tmux-sessionizer ]; then
+         tmux send-keys -t $1 "source $2/.tmux-sessionizer" c-M
+     elif [ -f $HOME/.tmux-sessionizer ]; then
+         tmux send-keys -t $1 "source $HOME/.tmux-sessionizer" c-M
diff --git a/nix/pkgs/tmux-sessionizer/default.nix b/nix/pkgs/tmux-sessionizer/default.nix
index 05e46589..25ec6fb6 100644
--- a/nix/pkgs/tmux-sessionizer/default.nix
+++ b/nix/pkgs/tmux-sessionizer/default.nix
@@ -21,6 +21,7 @@ stdenv.mkDerivation {
 
   patches = [
     ./move-default-script.patch
+    ./add-tmux-file.patch
     ./configure-directories.patch
   ];