This study investigated the role of desire thinking in predicting problematic Internet use (PIU) independently of weekly Internet use, anxiety, depression, and craving for Internet use. A sample of 250 Internet users completed the following self-report instruments: Hospital Anxiety and Depression Scale, Internet Use Craving Scale, Desire Thinking Questionnaire, and Internet Addiction Test. The sample was then divided into two subgroups: problematic Internet users (n = 90) and nonproblematic Internet users (n = 140). Mann–Whitney U tests revealed that all variable scores were significantly higher for problematic Internet users than nonproblematic Internet users. A logistic regression analysis indicated that imaginal prefiguration was a predictor of classification as problematic Internet user over and above weekly Internet use, anxiety, depression, and craving for Internet use. A hierarchical regression analysis, on the combined sample, indicated that both verbal perseveration and imaginal prefiguration predicted PIU independently of weekly Internet use, anxiety, depression, and craving for Internet use. These results add to the argument that the construct of desire thinking is relevant in understanding of addictive behaviors including PIU.