diff --git a/plugins/history-substring-search/history-substring-search.zsh b/plugins/history-substring-search/history-substring-search.zsh
index 405eeaad..22f03dd6 100644
--- a/plugins/history-substring-search/history-substring-search.zsh
+++ b/plugins/history-substring-search/history-substring-search.zsh
@@ -164,8 +164,12 @@ zle -N history-substring-search-up
 zle -N history-substring-search-down
 
 zmodload zsh/terminfo
-bindkey "$terminfo[kcuu1]" history-substring-search-up
-bindkey "$terminfo[kcud1]" history-substring-search-down
+if [[ -n "$terminfo[kcuu1]" ]]; then
+  bindkey "$terminfo[kcuu1]" history-substring-search-up
+fi
+if [[ -n "$terminfo[kcud1]" ]]; then
+  bindkey "$terminfo[kcud1]" history-substring-search-down
+fi
 
 #-----------------------------------------------------------------------------
 # implementation details