An error appeared in our paper entitled "para-Toluenesulfonic Acid Catalyzed Synthesis of Indenes a Tandem Friedel-Crafts Alkylation/Hydroarylation of Tertiary Propargylic Alcohols with Electron-Rich Arenes" published in Catalysis Letters. The word "via" was unfortunately missed to include in the article title. The correct title is as follows, para-Toluenesulfonic Acid Catalyzed Synthesis of Indenes via a Tandem Friedel-Crafts Alkylation/Hydroarylation of Tertiary Propargylic Alcohols with Electron-Rich Arenes.