An anti-collision element for preventing a collision of an end face of a ceiling formwork, wherein the ceiling formwork is supported by a first support apparatus placed in a dismantling position and on a second support apparatus placed in a shuttering position when the ceiling formwork is shifted into a next concreting cycle comprising a next concreting portion to be concreted, wherein the second support apparatus is arranged with respect to the first support apparatus in the direction of a shifting direction of the ceiling formwork, wherein the ceiling formwork is lifted up to a concreting level when the ceiling formwork is being supported by the support apparatus in the shuttering position, and, the ceiling formwork is lowered relative to the concreting level when the ceiling formwork is being supported by the support apparatus in the dismantling position, wherein, when the end face of the ceiling formwork strikes the second support apparatus after having passed over the first support apparatus, the anti-collision element is arranged between the second support apparatus and an end face of the ceiling formwork such that the anti-collision element has a flank for guiding the ceiling formwork in the shifting direction, said flank rising in the shifting direction and being formed as a solid or hollow body in a beak-shaped, cuneiform or skid-shaped manner or in the form of a ramp, and is configured to guide the end face of the ceiling formwork so as to lift it up to the concreting level such that the ceiling formwork can pass over the second support apparatus.