diff --git a/extra/cuda/constants/constants.factor b/extra/cuda/constants/constants.factor
new file mode 100644
index 0000000000..d66cabe444
--- /dev/null
+++ b/extra/cuda/constants/constants.factor
@@ -0,0 +1,4 @@
+IN: cuda.constants
+
+CONSTANT: cuda-shared-size 16384
+CONSTANT: cuda-warp-size 32