diff --git a/examples/all-sky/make_problem_size_loop.py b/examples/all-sky/make_problem_size_loop.py
index 17483e71f..8b4cdee98 100644
--- a/examples/all-sky/make_problem_size_loop.py
+++ b/examples/all-sky/make_problem_size_loop.py
@@ -60,5 +60,5 @@
     for l in args.nlay:
         for i in args.ncol:
             print(f"{args.executable} {i:6d} {l:4d} {args.nloops:3d} " +
-                  f"{args.output_file} {args.k_distribution}" +
-                  f"{args.cloud_optics} {args.aerosol_optics}")
+                  f"{args.output_file} {args.k_distribution} " +
+                  f"{args.cloud_optics} {args.aerosol_optics} ")