A connecting profile of constant cross section that couples sheet piles to carrier elements. The connecting profile exhibits a center strip, on which a coupling profile, which is to be connected to the carrier element, and an interlock profile for hooking an interlock of the sheet pile are formed. The interlock profile exhibits a supporting strip projecting from the center strip and a hook strip projecting from the center strip. The supporting strip projects at least approximately at a right angle from the center strip. The hook strip exhibits a transition section projecting at least approximately at a right angle from the center strip, and a hook section, which runs at least approximately at a right angle to the transition section in the direction of the supporting strip and which defines with the supporting strip a jaw for inserting the interlock of the sheet pile.