diff --git a/src/mesa/state_tracker/tests/st_format.c b/src/mesa/state_tracker/tests/st_format.c
index 35225e1abf7..12cb74bd0be 100644
--- a/src/mesa/state_tracker/tests/st_format.c
+++ b/src/mesa/state_tracker/tests/st_format.c
@@ -92,7 +92,7 @@ int main(int argc, char **argv)
          if (pf != i) {
             fprintf(stderr, "Round-tripping %s -> %s -> %s failed\n",
                     util_format_short_name(i),
-                    _mesa_get_format_name(pf),
+                    _mesa_get_format_name(mf),
                     util_format_short_name(pf));
             return 1;
          }