diff --git a/pefile.py b/pefile.py
index 6114857..3d46782 100644
--- a/pefile.py
+++ b/pefile.py
@@ -2293,7 +2293,7 @@ def create(unwcode):
     string.ascii_lowercase
     + string.ascii_uppercase
     + string.digits
-    + "!#$%&'()-@^_`{}~+,.;=[]"
+    + "!#$%&'()-@^_`{}~+,.;=[]:"
 ).encode()