Background: Inhibition develops rapidly in the preschool period and plays an important role in different aspects of children’s functioning: they learn how to control their attention, emotional expressions, and impulsiveness in different situations. There is a lack of examination of preschool children’s performance on behavioural measures that call for inhibition of action in direct linking with those that call for inhibiting an emotional expression. Aims: The aim of our pilot-study was to explore the possible relationship between inhibitory control and emotion regulation, more precisely the expressive control. Method: 29 Hungarian children participated in our research (Mage: 66,33 months; SD= 10,82; min: 47; max: 87; 13 boys). To investigate inhibitory control, we used the Go/No-go task from Early Years Toolbox. To measure expressive control, we used the disappointment paradigm. Results: We used the reactions of the disappointment paradigm as a grouping variable. Children, who reacted positively or neutrally to the undesired gift, they formed the group of “regulators”. Children with negative reaction formed the group of “non-regulators”. We used the hit score and false alarm score of the Go/no-go task. After the results of binomial logistic regression, false alarm reduces the probability of inclusion in the “regulators” group (χ2(1)=6,26; p=0,012; Odds ratio=0,0016). The hit had no effect (χ2(1)=0,0007; p>0,05). Implications: There is an ongoing data collection. These preliminary results showed that children with higher impulsivity regulate less their emotional expression. The findings lead us to further consideration of the connection between inhibition and emotion regulation.