diff --git a/gitsearchreplace/__init__.py b/gitsearchreplace/__init__.py
index 4420854..698ac07 100644
--- a/gitsearchreplace/__init__.py
+++ b/gitsearchreplace/__init__.py
@@ -54,7 +54,7 @@ def __init__(self, separator=None, diff=None, fix=None, renames=None, filters=No
 
     BIG_G_REGEX = re.compile(r"[\]G[{][^}]*[}]")
     def calc_big_g(self, big_g_expr):
-        """Transform the special interpolated \G{<python>}"""
+        """Transform the special interpolated \\G{<python>}"""
         parts = []
         prefix = r'\G{'
         oparts = big_g_expr.split(prefix)