diff --git a/src/radix17 b/src/radix17
deleted file mode 100644
index 8b1378917..000000000
--- a/src/radix17
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/src/radix17/.gitkeep b/src/radix17/.gitkeep
new file mode 100644
index 000000000..e69de29bb
diff --git a/src/radix19/.gitkeep b/src/radix19/.gitkeep
new file mode 100644
index 000000000..e69de29bb
diff --git a/src/radix23/.gitkeep b/src/radix23/.gitkeep
new file mode 100644
index 000000000..e69de29bb