diff --git a/CHANGELOG.md b/CHANGELOG.md
index b0d7935..0021727 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 # Changelog
 
 ### master
+- refactor `shared_set_tpm_path_constant` function
 
 ### v2.0.0, 2015-07-07
 - enable overriding default key bindings
diff --git a/scripts/shared_functions.sh b/scripts/shared_functions.sh
index cd11ca5..2ac30ec 100644
--- a/scripts/shared_functions.sh
+++ b/scripts/shared_functions.sh
@@ -7,9 +7,9 @@ SHARED_TPM_PATH=""
 # sets a "global variable" for the current file
 shared_set_tpm_path_constant() {
 	local string_path="$(tmux show-environment -g TMUX_PLUGIN_MANAGER_PATH | cut -f2 -d=)/"
-	# NOTE: manually expanding tilde or `$HOME` variable. Avoids using `eval` as
-	# described here http://stackoverflow.com/a/5748307/777337
-	SHARED_TPM_PATH="$(echo "$string_path" | sed "s,^\$HOME,$HOME," | sed "s,^~,$HOME,")"
+	# manually expanding tilde or `$HOME` variable.
+	string_path="${string_path/#\~/$HOME}"
+	SHARED_TPM_PATH="${string_path/#\$HOME/$HOME}"
 }
 
 _tmux_conf_contents() {