A fixing device for cables has at least an edge clip part for mounting the fixing device on an edge of a base part. The edge clip part includes a plug-on gap into which the edge is introduced when plugging the edge clip part onto the edge. At least one protective tab is provided which is articulated to a boundary wall of the plug-on gap and extends towards an opposed boundary wall of the plug-on gap. A recess for the protective tab is provided on the opposed boundary wall of the plug-on gap, into which the tip of the protective tab partly engages in the unloaded condition of the edge clip part.