1 files changed, 2 insertions, 2 deletions
diff --git a/sbolint b/sbolint
index 16b82f2..8a4463a 100755
--- a/sbolint
+++ b/sbolint
@@ -1221,8 +1221,8 @@ sub check_info {
 		log_error("$file: PRGNAM has invalid characters, only A-Z, a-z, 0-9, - + . _ are allowed");
 	}
 
-	if($info{REQUIRES} =~ /[^- +._A-Za-z0-9]/) {
-		log_error("$file: REQUIRES has invalid characters, only space, A-Z, a-z, 0-9, - + . _ are allowed");
+	if($info{REQUIRES} =~ /[^- %+._A-Za-z0-9]/) {
+		log_error("$file: REQUIRES has invalid characters, only space, A-Z, a-z, 0-9, - + . _ % are allowed");
 	}
 
 	if($info{VERSION} =~ /-/) {