diff --git a/scripts/check_tmux_version.sh b/scripts/check_tmux_version.sh
index 0774d7f..f5db448 100755
--- a/scripts/check_tmux_version.sh
+++ b/scripts/check_tmux_version.sh
@@ -3,6 +3,10 @@
 VERSION="$1"
 UNSUPPORTED_MSG="$2"
 
+CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+SCRIPTS_DIR="$CURRENT_DIR/../scripts"
+HELPERS_DIR="$SCRIPTS_DIR/helpers"
+
 source "$SCRIPTS_DIR/tmux_cmd_path.sh"
 
 
diff --git a/scripts/helpers/tmux_echo_functions.sh b/scripts/helpers/tmux_echo_functions.sh
index 989b876..8bf6aa0 100644
--- a/scripts/helpers/tmux_echo_functions.sh
+++ b/scripts/helpers/tmux_echo_functions.sh
@@ -1,3 +1,6 @@
+CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+SCRIPTS_DIR="$CURRENT_DIR/../../scripts"
+HELPERS_DIR="$SCRIPTS_DIR/helpers"
 source "$SCRIPTS_DIR/tmux_cmd_path.sh"
 
 _has_emacs_mode_keys() {