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-rw-r--r--numpy/lib/function_base.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/numpy/lib/function_base.py b/numpy/lib/function_base.py
index 5e433d3ab..9f1757d7c 100644
--- a/numpy/lib/function_base.py
+++ b/numpy/lib/function_base.py
@@ -3742,7 +3742,7 @@ def insert(arr, obj, values, axis=None):
# broadcasting is very different here, since a[:,0,:] = ... behaves
# very different from a[:,[0],:] = ...! This changes values so that
# it works likes the second case. (here a[:,0:1,:])
- values = np.rollaxis(values, 0, axis+1)
+ values = np.rollaxis(values, 0, axis % ndim + 1)
numnew = values.shape[axis]
newshape[axis] += numnew
new = empty(newshape, arr.dtype, arr.flags.fnc)