--- a/configure
+++ b/configure
@@ -461,7 +461,7 @@
 
 # A filename unique to this package, relative to the directory that
 # configure is in, which we can look for to find out if srcdir is correct.
-ac_unique_file=llnl-final-distribution
+ac_unique_file=configure.in
 
 # Find the source files, if location was not specified.
 if test -z "$srcdir"; then