diff --git a/uralicNLP/cg3.py b/uralicNLP/cg3.py
index 1dc8174..7fc527f 100644
--- a/uralicNLP/cg3.py
+++ b/uralicNLP/cg3.py
@@ -104,7 +104,7 @@ def __init__(self, *args, **kwargs):
 
 	def _find_weight(self, cg_morphologies):
 		for i, m in enumerate(cg_morphologies):
-			if re.search(r"^\<W\:(\d+|\.)+\>$",m):
+			if re.search(r"^\<W\:\d\.?\d+\>$",m):
 				return i
 
 	def _convert_morphologies(self, cg_results):