Pornography is used worldwide, and 3% of individuals may experience problematic pornography use (PPU, i.e. poorly controlled use resulting in significant distress and negative consequences). Therefore, instruments gauging PPU are needed in nation-specific languages. This study aimed to validate a modified version of the Problematic Pornography Consumption Scale-6 (PPCS-6) in the Serbian language among 1413 adults (52.9% males) aged from 18 to 54 (Mage = 24.96, SD = 4.46). Exploratory factor analysis on the sample’s random half yielded a single factor explaining 43% of the total variance. Confirmatory factor analysis on the sample’s other half revealed an acceptable model fit. Internal consistency (Cronbach’s alpha) was acceptable. The scale exhibited configural and partial metric invariance across genders and convergent validity. Latent profile analysis identified that 8.1% of the participants were at risk of experiencing PPU. In comparison, this value was 9.6% based on a calculated cutoff score (≥ 19) with acceptable values (.69 and.96) of sensitivity and specificity. To conclude, the Serbian modified version of the PPCS-6 appears to be a valid and reliable scale for screening PPU.