diff --git a/netCDF4/utils.py b/netCDF4/utils.py
index b1a59c78e..fc1a34bcc 100644
--- a/netCDF4/utils.py
+++ b/netCDF4/utils.py
@@ -223,7 +223,7 @@ def _StartCountStride(elem, shape, dimensions=None, grp=None, datashape=None,\
             # convert negative indices in 1d array to positive ones.
             ea = np.where(ea < 0, ea + shape[i], ea)
             if np.any(ea < 0):
-                raise IndexErro("integer index out of range")
+                raise IndexError("integer index out of range")
             # if unlim, let integer index be longer than current dimension
             # length.
             if ea.shape != (0,):