Turkish club division side Kayseri Erciyesspor. He quickly impressed the side at the trial, resulting in him signing for the club."/> Hanni made his Kayseri Erciyesspor debut, starting the whole game, in a 1–1 draw against Bucaspor on 10 September 2011 in the opening game of the season. It wasn't until on 25 September 2011 when he scored his first goal for Kayseri Erciyesspor, in a 2–1 win against Kartalspor. Seven days later on 2 October 2011, Hanni scored his second goal for the club, in a 1–0 win against Karşıyaka. In a follow–up match against Çaykur Rizespor on 15 October 2011, he set up two goals for Gökhan Kaba, who scored twice, in a 4–0 win. He later added two more goals for the side later in the year. Hanni then went three months without scoring; this lasted until 4 March 2012 when he scored in a 2–0 win against İstanbul Güngörenspor. He then went on a goal scoring spree between 1 April 2012 and 14 April 2012, including scoring twice against Göztepe. Hanni scored his tenth goal of the season, as well as, setting up the club's second goal of the game, in a 2–0 win against Sakaryaspor on 5 May 2012. Having established himself in the first team regular for the side, playing in the attacking midfield position, Hanni finished his first season at Kayseri Erciyesspor, making thirty–two appearances and scoring ten times in all competitions. In the 2012–13 season, Hanni continued to retain his place in the first team, playing in the attacking midfield position. Hanni scored his first goals for the club, in a 2–0 against Göztepe on 14 October 2012. Throughout the 2012–13 season, he began to play a role for the side when he assisted goals that saw him assisted sixteen times. Hanni set up five goals in three matches between 11 November 2012 and 24 November 2012, including twice against Kartalspor. He also set up two goals in two separate matches earlier in the season. It wasn't until in the last game of the season against Şanlıurfaspor when he scored twice once again, in a 3–1 win. As a result, Kayseri Erciyesspor were TFF First League champions after finishing first place in the league, resulting in their promotion to Süper Lig. At the end of the 2012–13 season, Hanni went on to make thirty–four appearances and scoring four times in all competitions.