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We report CCD photometry of the cataclysmic variable V1113 Cygni. During twocampaigns, lasting from May to August 2003 and from March to June 2005, werecorded two superoutburst. In the obtained light curves we detected clearsuperhumps with a mean period 0.07891(3) days (113.63(4) min). That factconfirms that the star is a member of SU UMa class of dwarf novae. During thefirst observed superoutburst the superhump period was decreasing with anenormous rate of $\dot P = -4.5(8)\times 10^{-4}$ which is one of the highestvalues ever observed in SU UMa systems.

The 2003 and 2005 superhumps in V1113 Cygni