diff --git a/user/usys.py b/user/usys.py
index 677c5b8..ad4e4c7 100755
--- a/user/usys.py
+++ b/user/usys.py
@@ -1,18 +1,13 @@
 #!/usr/bin/env python3
 
-template = """
-.global {name}
+template = """.global {name}
 {name}:
     li a7, SYS_{name}
     ecall
-    ret
-""".strip()
+    ret"""
 
 
 def genstub(syscall: str):
-    if not 3 >= len(syscall) <= 15:
-        raise ValueError("Syscall {} is too short/long!".format(syscall[:35]))
-
     return template.format(name=syscall)
 
 
@@ -60,9 +55,7 @@ with open("kernel/syscall.h", "r") as sfile:
         missing_in_header_calls = calls - header_calls
 
         if missing_in_calls:
-            print(
-                "#These items are in header_calls but not in calls:", missing_in_calls
-            )
+            print("#These items are in header_calls but not in calls:", missing_in_calls)
         if missing_in_header_calls:
             print(
                 "#These items are in calls but not in header_calls:",