diff --git a/cmdebug/svd_gdb.py b/cmdebug/svd_gdb.py
index 4fb993b..6252729 100644
--- a/cmdebug/svd_gdb.py
+++ b/cmdebug/svd_gdb.py
@@ -179,7 +179,7 @@ def _print_register_fields(self, container_name, form, register):
             gdb.write("\n")
 
     def invoke(self, args, from_tty):
-        s = str(args).split(" ")
+        s = str(args).split()
         form = ""
         if s[0] and s[0][0] == '/':
             if len(s[0]) == 1: