--- a/cubicweb/sobjects/textparsers.py	Tue Oct 09 16:24:12 2018 +0200
+++ b/cubicweb/sobjects/textparsers.py	Mon Oct 29 10:04:31 2018 +0100
@@ -59,7 +59,7 @@
 
          :<transition name>: #?<eid>
     """
-    instr_rgx = re.compile(':(\w+):\s*#?(\d+)', re.U)
+    instr_rgx = re.compile(r':(\w+):\s*#?(\d+)', re.U)
 
     def parse(self, caller, text):
         for trname, eid in self.instr_rgx.findall(text):