diff --git a/healthcareio/x12/__init__.py b/healthcareio/x12/__init__.py
index e64a3f7..4f0ad0f 100644
--- a/healthcareio/x12/__init__.py
+++ b/healthcareio/x12/__init__.py
@@ -286,7 +286,7 @@ class Parser (Process):
                     value = row[index] 
                     
                     if 'cast' in config and key in config['cast'] and value.strip() != '' :
-                        if config['cast'][key] in ['float','int'] and (value.replace.isnumeric() or (len(value.split('.')) == 1) and value.replace('.','').isnumeric() ):
+                        if config['cast'][key] in ['float','int'] and (value.isnumeric() or (len(value.split('.')) == 1) and value.replace('.','').isnumeric() ):
                             value = eval(config['cast'][key])(value)
                         elif hasattr(handler,config['cast'][key]):