1 files changed, 1 insertions, 0 deletions
diff --git a/build.lisp b/build.lisp
index f58dc54..1cb8322 100644
--- a/build.lisp
+++ b/build.lisp
@@ -12,4 +12,5 @@
    SWANK-IO-PACKAGE::SWANK-ARGLISTS
    SWANK-IO-PACKAGE::SWANK-REPL))
 
+(ensure-directories-exist #P"./bin/")
 (sb-ext:save-lisp-and-die "bin/vampire" :toplevel #'vampire::run-vampire :executable t )