diff --git a/getconf.1 b/getconf.1
index 8fcf960..71a4767 100644
--- a/getconf.1
+++ b/getconf.1
@@ -32,7 +32,7 @@ and limits.h (Minimum and Maximum).
 .sp
 If
 .Ar var
-is not defined or has not been found,
+is not defined,
 .Nm
 writes "undefined" to stdout.
 .Sh OPTIONS
@@ -48,7 +48,7 @@ was matched and its value written successfully.
 .It 1
 An error occured or
 .Ar var
-was neither defined nor found.
+was invalid.
 .El
 .Sh STANDARDS
 The
diff --git a/getconf.c b/getconf.c
index d927f2d..c7cfb06 100644
--- a/getconf.c
+++ b/getconf.c
@@ -102,7 +102,5 @@ main(int argc, char *argv[])
 		usage();
 	}
 
-	puts("undefined");
-
-	return 1;
+	eprintf("invalid variable: %s\n", argv[0]);
 }