diff --git a/.github/stubtest-allowlist b/.github/stubtest-allowlist
index dc353cdc2..f53449917 100644
--- a/.github/stubtest-allowlist
+++ b/.github/stubtest-allowlist
@@ -23,5 +23,4 @@ netCDF4._netCDF4.Variable.auto_complex
 netCDF4._netCDF4.__reduce_cython__
 netCDF4._netCDF4.__setstate_cython__
 netCDF4._netCDF4.__test__
-netCDF4._netCDF4.dtype_is_complex
 netCDF4.utils.bytes
\ No newline at end of file
diff --git a/src/netCDF4/__init__.pyi b/src/netCDF4/__init__.pyi
index 61eef8a20..da958e61a 100644
--- a/src/netCDF4/__init__.pyi
+++ b/src/netCDF4/__init__.pyi
@@ -529,8 +529,6 @@ def stringtoarr(string, NUMCHARS: int, dtype: Literal['S', 'U'] = 'S') -> np.nda
 def stringtochar(a, encoding: str | bytes | None = 'utf-8') -> np.ndarray: ...
 def chartostring(b, encoding: str | bytes | None = 'utf-8') -> np.ndarray: ...
 
-def dtype_is_complex(dtype: str) -> bool: ...
-
 def getlibversion() -> str: ...
 
 def set_alignment(threshold: int, alignment: int): ...
diff --git a/src/netCDF4/_netCDF4.pyi b/src/netCDF4/_netCDF4.pyi
index cfec62156..536d4f63b 100644
--- a/src/netCDF4/_netCDF4.pyi
+++ b/src/netCDF4/_netCDF4.pyi
@@ -13,4 +13,7 @@ from . import (
     __has_quantization_support__, __has_zstandard_support__,
     __has_bzip2_support__, __has_blosc_support__, __has_szip_support__,
     __has_set_alignment__, __has_ncfilter__
-)
\ No newline at end of file
+)
+
+
+def dtype_is_complex(dtype: str) -> bool: ...