diff -Naur websec-1.9.0.org/websec websec-1.9.0/websec
--- websec-1.9.0.org/websec	2006-01-20 19:05:25.000000000 +0100
+++ websec-1.9.0/websec	2015-11-22 14:46:52.891549814 +0100
@@ -229,12 +229,12 @@
     }
 
     # Allow values from the environment
-    while ($value =~ m/\${([^}]+)}/) {
+    while ($value =~ m/\$\{([^}]+)}/) {
         if (not exists $ENV{$1}) {
             print STDERR "Used environment variable '$1' but it is not defined, aborting.\n";
             exit 1;
         }
-        $value =~ s/\${([^}]+)}/$ENV{$1}/;
+        $value =~ s/\$\{([^}]+)}/$ENV{$1}/;
     }
 
     $siteinfo{$keyword} = $value;