diff --git a/bindings/update_plugins b/bindings/update_plugins
index ce3df46..8b3ca63 100755
--- a/bindings/update_plugins
+++ b/bindings/update_plugins
@@ -11,7 +11,7 @@ CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 SCRIPTS_DIR="$CURRENT_DIR/../scripts"
 HELPERS_DIR="$SCRIPTS_DIR/helpers"
 
-export TMUX_CMD_PATH=$(realpath "/proc/$(tmux display -p '#{pid}')/exe" 2> /dev/null || echo "tmux" | sed -z '$ s/\n$//')
+source "$SCRIPTS_DIR/tmux_cmd_path.sh"
 
 source "$HELPERS_DIR/plugin_functions.sh"
 source "$HELPERS_DIR/tmux_echo_functions.sh"
diff --git a/scripts/check_tmux_version.sh b/scripts/check_tmux_version.sh
index 77901b4..0774d7f 100755
--- a/scripts/check_tmux_version.sh
+++ b/scripts/check_tmux_version.sh
@@ -3,7 +3,8 @@
 VERSION="$1"
 UNSUPPORTED_MSG="$2"
 
-export TMUX_CMD_PATH=$(realpath "/proc/$(tmux display -p '#{pid}')/exe" 2> /dev/null || echo "tmux" | sed -z '$ s/\n$//')
+source "$SCRIPTS_DIR/tmux_cmd_path.sh"
+
 
 get_tmux_option() {
 	local option=$1
diff --git a/scripts/helpers/tmux_echo_functions.sh b/scripts/helpers/tmux_echo_functions.sh
index 7a6ef0a..989b876 100644
--- a/scripts/helpers/tmux_echo_functions.sh
+++ b/scripts/helpers/tmux_echo_functions.sh
@@ -1,10 +1,12 @@
+source "$SCRIPTS_DIR/tmux_cmd_path.sh"
+
 _has_emacs_mode_keys() {
-	$(tmux show -gw mode-keys | grep -q emacs)
+	$($TMUX_CMD_PATH show -gw mode-keys | grep -q emacs)
 }
 
 tmux_echo() {
 	local message="$1"
-	tmux run-shell "echo '$message'"
+	$TMUX_CMD_PATH run-shell "echo '$message'"
 }
 
 echo_ok() {
diff --git a/scripts/tmux_cmd_path.sh b/scripts/tmux_cmd_path.sh
new file mode 100755
index 0000000..60fd2e4
--- /dev/null
+++ b/scripts/tmux_cmd_path.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+
+# Written by michaellee8 <ckmichael8@gmail.com> in Nov 2020 for 
+# https://github.com/tmux-plugins/tpm/issues/189 to prevent problems caused by 
+# tmux version mismatch between client and server. This script is 
+# licensed in public domain.
+
+# Try to get the process ID of the running tmux server, 
+# would be empty if not found
+TMUX_SERVER_PID=$(ps -eo pid=,comm= | grep 'tmux: server' | awk '{ print $1; }')
+
+if [[ -n "$TMUX_SERVER_PID" ]]; then
+    TMUX_CMD_PATH=$(realpath "/proc/$TMUX_SERVER_PID/exe" 2> /dev/null || echo "tmux" | sed -z '$ s/\n$//')
+else
+    TMUX_CMD_PATH='tmux'
+fi
+
+export TMUX_CMD_PATH
diff --git a/tpm b/tpm
index a96b4b0..e8d79d5 100755
--- a/tpm
+++ b/tpm
@@ -4,11 +4,7 @@ CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 BINDINGS_DIR="$CURRENT_DIR/bindings"
 SCRIPTS_DIR="$CURRENT_DIR/scripts"
 
-# Try to find the executable path of the currently running 
-# tmux server, fallback to just "tmux" if not found or no 
-# procfs aviliable (non-linux).
-export TMUX_CMD_PATH=$(realpath "/proc/$(tmux display -p '#{pid}')/exe" 2> /dev/null || echo "tmux" | sed -z '$ s/\n$//')
-echo "tmux executable used: $TMUX_CMD_PATH"
+source "$SCRIPTS_DIR/tmux_cmd_path.sh"
 
 source "$SCRIPTS_DIR/variables.sh"