diff --git a/extra/benchmark/euler186/euler186.factor b/extra/benchmark/euler186/euler186.factor
deleted file mode 100644
index 681ca0e269..0000000000
--- a/extra/benchmark/euler186/euler186.factor
+++ /dev/null
@@ -1,7 +0,0 @@
-IN: benchmark.euler186
-USING: kernel project-euler.186 ;
-
-: euler186-benchmark ( -- )
-    euler186 2325629 assert= ;
-
-MAIN: euler186-benchmark