1 files changed, 1 insertions, 0 deletions
diff --git a/sbolint b/sbolint
index ecdb424..d7c5ce2 100755
--- a/sbolint
+++ b/sbolint
@@ -1033,6 +1033,7 @@ sub check_url {
 	return 0 if $_[0] =~ /\s/;  #  ...it contains a space,
 	return 0 if $_[0] !~ /\./;  #  ...it has no dots, or
 	return 0 if $_[0] !~ /\//;  #  ...it has no slashes, or
+	return 0 if $_[0] =~ /\$/;  #  ...it contains a dollar sign, or
 	return ($_[0] =~ /^(?:ftp|https?):\/\//); # ...it doesn't have a known protocol,
 	# ...which doesn't necessarily mean it's a good URL either.
 }