diff --git a/zsh-history-substring-search.plugin.zsh b/zsh-history-substring-search.plugin.zsh
deleted file mode 100644
index b393f66..0000000
--- a/zsh-history-substring-search.plugin.zsh
+++ /dev/null
@@ -1,12 +0,0 @@
-# This file integrates the zsh-history-substring-search script into oh-my-zsh.
-
-source "${0:r:r}.zsh"
-
-if test "$CASE_SENSITIVE" = true; then
-  unset HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS
-fi
-
-if test "$DISABLE_COLOR" = true; then
-  unset HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND
-  unset HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_NOT_FOUND
-fi