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-rw-r--r--scipy/base/src/multiarraymodule.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/scipy/base/src/multiarraymodule.c b/scipy/base/src/multiarraymodule.c
index 0d4326b9f..4ad5d03f4 100644
--- a/scipy/base/src/multiarraymodule.c
+++ b/scipy/base/src/multiarraymodule.c
@@ -1117,7 +1117,7 @@ PyArray_Concatenate(PyObject *op, int axis)
return NULL;
}
- if ((0 < axis) && (axis < MAX_DIMS))
+ if ((axis < 0) || ((0 < axis) && (axis < MAX_DIMS)))
return _swap_and_concat(op, axis, n);
ret = NULL;