diff --git a/src/awkward/_connect/_numba/builder.py b/src/awkward/_connect/_numba/builder.py
index 217f985e4f..4e2cdb03cb 100644
--- a/src/awkward/_connect/_numba/builder.py
+++ b/src/awkward/_connect/_numba/builder.py
@@ -20,9 +20,7 @@ def globalstring(context, builder, pyvalue):
         buf = dynamic_addrs[pyvalue] = numpy.array(pyvalue.encode("utf-8") + b"\x00")
         context.add_dynamic_addr(builder, buf.ctypes.data, info=f"str({pyvalue!r})")
     ptr = context.get_constant(numba.types.uintp, dynamic_addrs[pyvalue].ctypes.data)
-    return builder.inttoptr(
-        ptr, llvmlite.ir.PointerType(llvmlite.ir.IntType(8))
-    )
+    return builder.inttoptr(ptr, llvmlite.ir.PointerType(llvmlite.ir.IntType(8)))
 
 
 class ArrayBuilderType(numba.types.Type):
diff --git a/src/awkward/_v2/_connect/numba/builder.py b/src/awkward/_v2/_connect/numba/builder.py
index f6169fb981..efe2bbd9e3 100644
--- a/src/awkward/_v2/_connect/numba/builder.py
+++ b/src/awkward/_v2/_connect/numba/builder.py
@@ -18,9 +18,7 @@ def globalstring(context, builder, pyvalue):
         buf = dynamic_addrs[pyvalue] = numpy.array(pyvalue.encode("utf-8") + b"\x00")
         context.add_dynamic_addr(builder, buf.ctypes.data, info=f"str({repr(pyvalue)})")
     ptr = context.get_constant(numba.types.uintp, dynamic_addrs[pyvalue].ctypes.data)
-    return builder.inttoptr(
-        ptr, llvmlite.ir.PointerType(llvmlite.ir.IntType(8))
-    )
+    return builder.inttoptr(ptr, llvmlite.ir.PointerType(llvmlite.ir.IntType(8)))
 
 
 class ArrayBuilderType(numba.types.Type):
diff --git a/src/awkward/_v2/behaviors/string.py b/src/awkward/_v2/behaviors/string.py
index 5f6844aead..32c6cf72dc 100644
--- a/src/awkward/_v2/behaviors/string.py
+++ b/src/awkward/_v2/behaviors/string.py
@@ -213,9 +213,7 @@ def _string_numba_lower(
     )
     rawptr_cast = builder.inttoptr(
         rawptr,
-        llvmlite.ir.PointerType(
-            llvmlite.ir.IntType(numba.intp.bitwidth // 8)
-        ),
+        llvmlite.ir.PointerType(llvmlite.ir.IntType(numba.intp.bitwidth // 8)),
     )
     strsize = builder.sub(stop, start)
     strsize_cast = ak._v2._connect.numba.layout.castint(
diff --git a/src/awkward/behaviors/string.py b/src/awkward/behaviors/string.py
index 07b4a7a6ff..f16baae4ca 100644
--- a/src/awkward/behaviors/string.py
+++ b/src/awkward/behaviors/string.py
@@ -228,9 +228,7 @@ def _string_numba_lower(
     )
     rawptr_cast = builder.inttoptr(
         rawptr,
-        llvmlite.ir.PointerType(
-            llvmlite.ir.IntType(numba.intp.bitwidth // 8)
-        ),
+        llvmlite.ir.PointerType(llvmlite.ir.IntType(numba.intp.bitwidth // 8)),
     )
     strsize = builder.sub(stop, start)
     strsize_cast = ak._connect._numba.castint(