Wiper blade, in particular for a motor vehicle

A wiper blade (10) for a motor vehicle, comprising a wiper strip (12), a fluid channel (28), which has a channel diameter (DK), for conducting a cleaning liquid, and an end cap (18), characterized in that the end cap (18) has a main body and a blocking plug (30) extending from the main body and formed integrally as a single piece with main body, wherein the blocking plug includes a distal region configured to be inserted into the fluid channel, wherein the distal region has a blocking diameter (DB) which is smaller than the channel diameter (DK), such that a radial gap is configured to exist within the channel between the distal region and the channel diameter (DK) when the distal region is inserted into the fluid channel.