\n We report new 1.2 mm continuum observations of the\n L183 (= L134N ) dark cloud with the MAMBO bolometer\n array at IRAM. Combined with ISOCAM and ISOPHOT data at 7 and 200 μm, this new observation is not compatible with the results found\n by Ward-Thompson et al. (1994) with SCUBA and further\n analysed by Lehtinen et al. (2003) using ISOPHOT\n data. Only one bright core, with a northern elongation (the ridge) is\n detected. We show that this core has an average temperature $T \\approx 7.6~{\\rm K} \\pm0.5$ K which is one of the coldest temperatures\n reported so far. \n \n