We detected IL‐17RA expression and mitochondria levels in AECIIs by immunofluorescence colocalization analyses in consecutive lung sections of end‐stage IPF patients (n = 8, Table S1) and donor controls (n = 5) using prosurfactant protein C (pro‐SPC) and ATP synthase C as markers of AECIIs and mitochondria, respectively. Here, IL17RA is linked to idiopathic pulmonary fibrosis.