(NaCl)x(Ga2S3)0.2–0.2x(GeS2)0.8–0.8x glasses (10− 4 ≤ x ≤ 0.3) were studied. Conductivity at 298 K increases by 11 orders of magnitude with increasing NaCl content. Diluted NaCl-doped glasses exhibit features typical for critical percolation regime. Deviations from the critical percolation regime are observed at higher sodium content.