Upon a behavioural response, associations between stimuli and the reaction are integrated in a temporary memory trace named event file. Reencountering a component causes the retrieval of the the entire event file, leading to interferences and performance impairments if only some parts are repeated and others changed (partial-repetition costs). The stored conjunctions can not only include bindings between target and reaction, but also between task-irrelevant distractors and the response (distractor-response binding). Past research has shown that these links can be formed effortlessly without assumptions of capacity limitations. This study investigates the role of working memory for such bindings by testing capacity-related boundaries. In a distractor-response binding paradigm, polygons were presented in a grid consisting of one target, one distractor and 0, 3 or 7 additional task-irrelevant polygons. If the size of an event file (i.e. the amount of arbitrary bindings) is finite, distractor-response binding effects are expected to be reduced or eliminated at larger set sizes. The results are discussed in the context of established action control and working memory literature.