diff --git a/.bash_profile b/.bash_profile
index 62c02f5..edf5e8b 100644
--- a/.bash_profile
+++ b/.bash_profile
@@ -31,9 +31,9 @@ fi
 unset _PLATFORM
 
 # Add bin directories to PATH.
-[ -d ~/files/bin ] && export PATH="~/files/bin:$PATH"
-[ -d ~/.local/bin ] && export PATH="~/.local/bin:$PATH"
-[ -d ~/bin ] && export PATH="~/bin:$PATH"
+[ -d "$HOME/files/bin" ] && export PATH="$HOME/files/bin:$PATH"
+[ -d "$HOME/.local/bin" ] && export PATH="$HOME/.local/bin:$PATH"
+[ -d "$HOME/bin" ] && export PATH="$HOME/bin:$PATH"
 
 # SSH agent.
 hash ssh-add ssh-agent >/dev/null 2>&1 && {