diff --git a/stim/cuda/arraymath.cuh b/stim/cuda/arraymath.cuh
index 449062d..ad066bb 100644
--- a/stim/cuda/arraymath.cuh
+++ b/stim/cuda/arraymath.cuh
@@ -5,6 +5,7 @@
 #include <stim/cuda/array_multiply.cuh>
 #include <stim/cuda/array_abs.cuh>
 #include <stim/cuda/array_cart2polar.cuh>
+#include <stim/cuda/gaussian_blur.cuh>
 
 namespace stim{
 	namespace cuda{
--
libgit2 0.21.4