diff --git a/tinygrad/helpers.py b/tinygrad/helpers.py
index e4a630238f..11bfb64982 100644
--- a/tinygrad/helpers.py
+++ b/tinygrad/helpers.py
@@ -16,7 +16,6 @@ def colored(st, color, background=False): return f"\u001b[{10*background+60*(col
 def ansilen(s): return len(re.sub('\x1b\\[(K|.*?m)', '', s))
 def make_pair(x:Union[int, Tuple[int, ...]], cnt=2) -> Tuple[int, ...]: return (x,)*cnt if isinstance(x, int) else x
 def flatten(l:Iterator): return [item for sublist in l for item in sublist]
-def mnum(i) -> str: return str(i) if i >= 0 else f"m{-i}"
 def fromimport(mod, frm): return getattr(__import__(mod, fromlist=[frm]), frm)
 def merge_dicts(ds:Iterable[Dict]) -> Dict:
   kvs = set([(k,v) for d in ds for k,v in d.items()])