diff --git a/zsh/zshenv b/zsh/zshenv
index e99691c..8cc4a23 100644
--- a/zsh/zshenv
+++ b/zsh/zshenv
@@ -20,17 +20,21 @@ export PAGER=less
 export PYTHONSTARTUP="$XDG_CONFIG_HOME/python/startup.py"
 export ZDOTDIR="$XDG_CONFIG_HOME/zsh"
 
-# Make man pages pretty
-rst="$(tput sgr0)"
-export LESS_TERMCAP_md="$(printf '%s\n' 'setaf 3' | tput -S)"
-export LESS_TERMCAP_mb="$LESS_TERMCAP_md"
-export LESS_TERMCAP_me="$rst"
-export LESS_TERMCAP_us="$(printf '%s\n' 'setaf 7' 'smul' | tput -S)"
-export LESS_TERMCAP_ue="$rst"
-export LESS_TERMCAP_so="$(printf '%s\n' 'setaf 4' 'setab 0' | tput -S)"
-export LESS_TERMCAP_se="$rst"
-export GROFF_NO_SGR=1
-unset rst
+# Make man pages pretty, but only if $TERM is set because otherwise `tput`
+# would report errors (e.g., when running a command via SSH without allocating
+# a pty $TERM is not set).
+[ -n "$TERM" ] && {
+    rst="$(tput sgr0)"
+    export LESS_TERMCAP_md="$(printf '%s\n' 'setaf 3' | tput -S)"
+    export LESS_TERMCAP_mb="$LESS_TERMCAP_md"
+    export LESS_TERMCAP_me="$rst"
+    export LESS_TERMCAP_us="$(printf '%s\n' 'setaf 7' 'smul' | tput -S)"
+    export LESS_TERMCAP_ue="$rst"
+    export LESS_TERMCAP_so="$(printf '%s\n' 'setaf 4' 'setab 0' | tput -S)"
+    export LESS_TERMCAP_se="$rst"
+    export GROFF_NO_SGR=1
+    unset rst
+}
 
 # Prevent path_helper from messing with the PATH when starting tmux.
 #   See: https://superuser.com/a/583502