diff --git a/chaco/_cython_speedups.c b/chaco/_cython_speedups.c

index 2b20855d..3bb47bc2 100644

--- a/chaco/_cython_speedups.c

+++ b/chaco/_cython_speedups.c

@@ -590,8 +590,8 @@ static CYTHON_INLINE float __PYX_NAN() {

 /* Early includes */

 #include <string.h>

 #include <stdio.h>

-#include "numpy/arrayobject.h"

-#include "numpy/ufuncobject.h"

+#include "numpy-py3/arrayobject.h"

+#include "numpy-py3/ufuncobject.h"

 #include "_isnan.h"

 #ifdef _OPENMP

 #include <omp.h>

diff --git a/chaco/_speedups.cpp b/chaco/_speedups.cpp

index 9f6fc37c..c86fd415 100644

--- a/chaco/_speedups.cpp

+++ b/chaco/_speedups.cpp

@@ -2,8 +2,8 @@

 #include <math.h>

 #include "Python.h"

 #include "structmember.h"

-#include "numpy/arrayobject.h"

-#include "numpy/ufuncobject.h"

+#include "numpy-py3/arrayobject.h"

+#include "numpy-py3/ufuncobject.h"

 #define SAFE_FROMARRAY_1D(a, type)  \

     ((a) == NULL) ? (a) : PyArray_FROMANY(a, type, 1, 1, NPY_IN_ARRAY)

diff --git a/chaco/contour/cntr.c b/chaco/contour/cntr.c

index 741514ee..065b85fd 100644

--- a/chaco/contour/cntr.c

+++ b/chaco/contour/cntr.c

@@ -20,10 +20,10 @@

 #include <stdio.h>

 #ifdef NUMPY

-#include "numpy/arrayobject.h"

+#include "numpy-py3/arrayobject.h"

 # ifndef PyArray_SBYTE

-#  include "numpy/oldnumeric.h"

-#  include "numpy/old_defines.h"

+#  include "numpy-py3/oldnumeric.h"

+#  include "numpy-py3/old_defines.h"

 # endif

 #else

 # include "Numeric/arrayobject.h"

-- 

2.24.1