Floor lighting module for a motor vehicle for generating a ground light distribution, with which a ground can be illuminated laterally and/or underneath a motor vehicle, wherein the ground lighting module is set up to adjust the ground light distribution about a first axis (z) and a second axis (x) which differs from the first axis, wherein the ground lighting module can be fastened to a motor vehicle, wherein the ground lighting module comprises the following: - a light source for generating the floor light distribution, - a light source carrier to which the light source is attached - a fastening device for fastening the ground lighting module to a motor vehicle, - an adapter element which is set up to enable the adjustment of the ground light distribution about the first axis (z) and the second axis (x), the adapter element being mounted on the fastening device so as to be rotatable about the first axis (z), wherein the illuminant carrier is fastened to the adapter element in such a way that a rotary movement of the adapter element about the first axis (z) causes the illuminant carrier to rotate about the first axis (z), and wherein the illuminant carrier is mounted on the adapter element so as to be rotatable about the second axis (x), wherein the adapter element has a circular receiving opening, the fastening device having a receiving section of complementary design to the receiving opening, the fastening device being received in the receiving opening via the receiving section, wherein the receiving opening has a holding portion and the fastening device has a counter portion corresponding to the holding portion, characterized in that the holding portion and the counter portion are designed with respect to one another in such a way that, in a receiving state in which the receiving section of the fastening device is received in the receiving opening of the adapter element, the retaining section engages with the mating section in such a way that the adapter element is secured against movement along the first axis of rotation (z), wherein the circular receiving opening has teeth extending radially to the first axis (z) at least in sections along its circumference, wherein the teeth are designed and arranged to cooperate with a counter element, wherein the counter element can be brought into engagement with the teeth in such a way that a rotary movement about the first axis (z) which can be executed by the counter element can induce a rotary movement of the adapter element relative to the fastening element. - a light source for generating the floor light distribution, - a light source carrier to which the light source is attached - a fastening device for fastening the ground lighting module to a motor vehicle, - an adapter element which is set up to enable the adjustment of the ground light distribution about the first axis (z) and the second axis (x), the adapter element being mounted on the fastening device so as to be rotatable about the first axis (z), wherein the illuminant carrier is fastened to the adapter element in such a way that a rotary movement of the adapter element about the first axis (z) causes the illuminant carrier to rotate about the first axis (z), and wherein the illuminant carrier is mounted on the adapter element so as to be rotatable about the second axis (x), the adapter element has a circular receiving opening, the fastening device having a receiving section of complementary design to the receiving opening, the fastening device being received in the receiving opening via the receiving section, wherein the receiving opening has a holding portion and the fastening device has a counter portion corresponding to the holding portion, characterized in that the holding portion and the counter portion are designed with respect to one another in such a way that, in a receiving state in which the receiving section of the fastening device is received in the receiving opening of the adapter element, the retaining section engages with the mating section in such a way that the adapter element is secured against movement along the first axis of rotation (z), wherein the circular receiving opening has teeth extending radially to the first axis (z) at least in sections along its circumference, wherein the teeth are designed and arranged to cooperate with a counter element, wherein the counter element can be brought into engagement with the teeth in such a way that a rotary movement about the first axis (z) which can be executed by the counter element can induce a rotary movement of the adapter element relative to the fastening element.