diff --git a/extra/assembly/assembly.py b/extra/assembly/assembly.py
index f6f0289a36..560908d4af 100644
--- a/extra/assembly/assembly.py
+++ b/extra/assembly/assembly.py
@@ -97,7 +97,7 @@ def uops_to_asmstyle(lang, function_name:str, uops:List[UOp]):
   lang.ins.clear()
   lang.tor.clear()
   lang.cnts.clear()
-  buf_to_dtype = {args[0]:args[1] for uop,_,_,args,_ in uops if uop == UOps.DEFINE_GLOBAL}
+  buf_to_dtype = {args:dtype for uop,dtype,_,args,_ in uops if uop == UOps.DEFINE_GLOBAL}
   global_size, local_size = [], []
   skipload_branch = 0
   lang.ins += [AssemblyInstruction(UOps.SPECIAL, lang.newreg(buf, dtype=dtypes.uint64, scalar=True), [], buf) for buf in buf_to_dtype]
diff --git a/extra/triton/triton.py b/extra/triton/triton.py
index 9b48f3140c..21a66a2d96 100644
--- a/extra/triton/triton.py
+++ b/extra/triton/triton.py
@@ -98,8 +98,8 @@ def uops_to_triton(function_name:str, uops:List[UOp]):
       kk(f"{'if '+r[vin[3]]+': ' if len(vin)>3 else ''}tl.store({r[vin[0]]} + {r[vin[1]]}, {r[vin[2]].replace('//', '/')}, mask = {render_valid(valid)}) ")
     elif uop == UOps.DEFINE_GLOBAL:
       bufs.append(args)
-      signatures.append("*" if isinstance(args[1], PtrDType) else "" +  signature_dtypes[args[1]])
-      r[u] = args[0]
+      signatures.append("*" if isinstance(dtype, PtrDType) else "" +  signature_dtypes[dtype])
+      r[u] = args
     elif uop == UOps.SPECIAL:
       dims.append(args[1])
       valid.append(f"{args[1]}<{get_max(args[2])}")
@@ -111,7 +111,7 @@ def uops_to_triton(function_name:str, uops:List[UOp]):
     elif uop == UOps.CAST and dtype is not None: r[u] = render_cast(r[vin[0]], dtype, isinstance(args, tuple) and args[1])
     else: raise NotImplementedError(f"unimplemented: {uop}")
 
-  prg = f"import triton\nimport triton.language as tl\ntl.core.TRITON_MAX_TENSOR_NUMEL = float('inf')\n@triton.jit\ndef {function_name}("+','.join(f"{buf[0]}" for buf in bufs)+"):\n"
+  prg = f"import triton\nimport triton.language as tl\ntl.core.TRITON_MAX_TENSOR_NUMEL = float('inf')\n@triton.jit\ndef {function_name}("+','.join(bufs)+"):\n"
   for i, line in enumerate(list(filter(lambda line: "tl.arange" in line, kernel))): kernel[kernel.index(line)] +=  f"[{', '.join([':' if i == j else 'None' for j in range(len(local_size))])}]"
   prg += "\n".join(kernel)
 
diff --git a/test/test_uops.py b/test/test_uops.py
index ed07469d2b..c863565bd7 100644
--- a/test/test_uops.py
+++ b/test/test_uops.py
@@ -20,8 +20,8 @@ def uop(uops:List[UOp], uop:UOps, dtype:Optional[DType], vin:Tuple[UOp, ...], ar
 
 def _test_single_value(vals, op, dtype):
   uops = []
-  buf_store = uop(uops, UOps.DEFINE_GLOBAL, PtrDType(dtype), (), ('data0', dtype))
-  buf_loads = [uop(uops, UOps.DEFINE_GLOBAL, PtrDType(dtype), (), (f'data{i+1}', dtype)) for i in range(len(vals))]
+  buf_store = uop(uops, UOps.DEFINE_GLOBAL, PtrDType(dtype), (), 'data0')
+  buf_loads = [uop(uops, UOps.DEFINE_GLOBAL, PtrDType(dtype), (), f'data{i+1}') for i in range(len(vals))]
   loads = (uop(uops, UOps.LOAD, dtype, [buf_loads[i], uop(uops, UOps.CONST, dtypes.int32, (), 0)]) for i in range(len(vals)))
   alu = uop(uops, UOps.ALU, dtype, loads, op)
   uop(uops, UOps.STORE, None, (buf_store, uop(uops, UOps.CONST, dtypes.int32, (), 0), alu))
@@ -33,7 +33,7 @@ def _test_single_value(vals, op, dtype):
 
 def _test_single_value_const(vals, op, dtype):
   uops = []
-  buf_store = uop(uops, UOps.DEFINE_GLOBAL, PtrDType(dtype), (), ('data0', dtype))
+  buf_store = uop(uops, UOps.DEFINE_GLOBAL, PtrDType(dtype), (), 'data0')
   loads = (uop(uops, UOps.CONST, dtype, [], a) for a in vals)
   alu = uop(uops, UOps.ALU, dtype, loads, op)
   uop(uops, UOps.STORE, None, (buf_store, uop(uops, UOps.CONST, dtypes.int32, (), 0), alu))
diff --git a/tinygrad/codegen/linearizer.py b/tinygrad/codegen/linearizer.py
index 75c10fe4ca..c900b6ab38 100644
--- a/tinygrad/codegen/linearizer.py
+++ b/tinygrad/codegen/linearizer.py
@@ -184,11 +184,11 @@ class Linearizer(Kernel):
     # add global buffers
     for i,buf in enumerate(self.bufs):
       if isinstance(buf, MemBuffer):
-        self.buf_uops[i] = self.uop(UOps.DEFINE_GLOBAL, dtype:=PtrDType(buf.dtype) if not isinstance(buf.dtype, ImageDType) else buf.dtype, (), (f"data{buf.idx}", dtype))  # noqa: E501
+        self.buf_uops[i] = self.uop(UOps.DEFINE_GLOBAL, buf.dtype if isinstance(buf.dtype, ImageDType) else PtrDType(buf.dtype), (), f"data{buf.idx}")
     # add var vals
     for var in vars_from_ast(self.ast):
       assert var.expr is not None
-      self.loop_uops[var.expr] = self.uop(UOps.DEFINE_GLOBAL, dtypes.int32, (), (var.expr, dtypes.int32))
+      self.loop_uops[var.expr] = self.uop(UOps.DEFINE_GLOBAL, dtypes.int32, (), var.expr)
     # define local buffers
     for lb in self.local_alias.values():
       self.buf_uops[self.bufs.index(lb)] = self.uop(UOps.DEFINE_LOCAL, PtrDType(dtypes.float32), (), (lb.name, self.sts[self.bufs.index(lb)].size()))
diff --git a/tinygrad/renderer/cstyle.py b/tinygrad/renderer/cstyle.py
index 59e7a90bdb..deaff7b38c 100644
--- a/tinygrad/renderer/cstyle.py
+++ b/tinygrad/renderer/cstyle.py
@@ -199,8 +199,9 @@ def uops_to_cstyle(lang:CStyleLanguage, function_name:str, uops:List[UOp]) -> Tu
         kk(lang.render_local(args[0], args[1]))
       r[u] = args[0]
     elif uop == UOps.DEFINE_GLOBAL:
-      bufs.append(args)
-      r[u] = args[0]
+      assert dtype is not None
+      bufs.append((args, dtype))
+      r[u] = args
     elif uop == UOps.GEP:
       if cast(DType, vin[0].dtype).sz > 4:
         r[u] = f"({r[vin[0]]})[{args}]"  # this is correct for HIP
diff --git a/tinygrad/renderer/llvmir.py b/tinygrad/renderer/llvmir.py
index 490f83676c..271607d9e4 100644
--- a/tinygrad/renderer/llvmir.py
+++ b/tinygrad/renderer/llvmir.py
@@ -79,11 +79,11 @@ def uops_to_llvm_ir(function_name:str, uops:List[UOp]) -> Tuple[str, Dict]:
   module = ir.Module(name=__file__)
 
   # extract global buffers
-  buf_to_dtype = {u.arg[0]:u.arg[1] for u in uops if u.uop == UOps.DEFINE_GLOBAL}
+  buf_to_dtype = {u.arg:u.dtype for u in uops if u.uop == UOps.DEFINE_GLOBAL}
   buf_index = {x:i for i,x in enumerate(buf_to_dtype.keys())}
 
   # create llvm function
-  func_dtypes = [(dtype_to_llvm_dtype[dtype],dtype) for dtype in buf_to_dtype.values()]
+  func_dtypes = [(dtype_to_llvm_dtype[dtype],dtype) for dtype in buf_to_dtype.values() if dtype is not None]
   func = ir.Function(module, ir.FunctionType(ir.VoidType(), [x.as_pointer() if isinstance(dt, PtrDType) else x for x,dt in func_dtypes]), name=function_name)  # noqa: E501
   for a in func.args:
     if a.type.is_pointer: a.add_attribute("noalias")
@@ -125,7 +125,7 @@ def uops_to_llvm_ir(function_name:str, uops:List[UOp]) -> Tuple[str, Dict]:
       bb.append(ir.IRBuilder(func.append_basic_block(f"loop_exit_{len(loop_blocks)}")))
       bb[-2].cbranch(bb[-2].icmp_unsigned("<", idx_p1, lvars[vin[0].vin[1]]), block._block, bb[-1]._block)
     if uop == UOps.DEFINE_GLOBAL:
-      lvars[u] = func.args[buf_index[args[0]]]
+      lvars[u] = func.args[buf_index[args]]
     if uop == UOps.DEFINE_ACC:
       lvars[u] = const(args, dtype)
       reduce_phis.append(u)