diff --git a/src/datamash.c b/src/datamash.c
index 2793550..7403cb4 100644
--- a/src/datamash.c
+++ b/src/datamash.c
@@ -302,7 +302,7 @@ which require a pair of fields (e.g. 'pcov 2:6').\n"), stdout);
 \n", program_name);
 
       fputs (_("For detailed usage information and examples, see\n"),stdout);
-      printf ("  man %s\n", PACKAGE_NAME);
+      printf ("  man %s\n", PROGRAM_NAME);
       fputs (_("The manual and more examples are available at\n"), stdout);
       fputs ("  " PACKAGE_URL "\n\n", stdout);
     }
diff --git a/src/decorate.c b/src/decorate.c
index d2d6057..7f45f94 100644
--- a/src/decorate.c
+++ b/src/decorate.c
@@ -285,7 +285,7 @@ Decorated output of roman numerals:\n\
 
 
      fputs (_("For detailed usage information and examples, see\n"),stdout);
-     printf ("  man %s\n", program_name);
+     printf ("  man %s\n", PROGRAM_NAME);
      fputs (_("The manual and more examples are available at\n"), stdout);
      fputs ("  " PACKAGE_URL "\n\n", stdout);
     }