Cytoplasmic p62 and (phospho)-TDP-43-positive inclusions have been reported in glia in frontal, parietal, temporal, and motor cortex, hippocampus, brainstem, cerebellum, and spinal cord of C9-FTLD, C9-FTLD/ALS, and C9-ALS cases (Al-Sarraj et al., 2011; Cooper-Knock et al., 2012; Schipper et al., 2016), but it was not specified in which glial cell types the inclusions were detected. Here, C9 is linked to amyotrophic lateral sclerosis.