diff --git a/regions/io/crtf/read.py b/regions/io/crtf/read.py
index b02f518d..bc2696f6 100644
--- a/regions/io/crtf/read.py
+++ b/regions/io/crtf/read.py
@@ -15,7 +15,7 @@
 __all__ = ['read_crtf', 'CRTFParser', 'CRTFRegionParser']
 
 # All CASA files start with '#CRTF' . It may also include the version number like '#CRTFv0' .
-regex_begin = re.compile(r'^#CRTFv?[\d]?$')
+regex_begin = re.compile(r'^#CRTFv?[\d]?')
 
 # Comment Format :
 regex_comment = re.compile(r'^#.*$')