diff --git a/Tomogram.lean b/Tomogram.lean
deleted file mode 100644
index 3936e71..0000000
--- a/Tomogram.lean
+++ /dev/null
@@ -1,3 +0,0 @@
-
-def main : IO Unit := do
-  IO.println "tomogram stub"
diff --git a/Tomograph.lean b/Tomograph.lean
new file mode 100644
index 0000000..0878b36
--- /dev/null
+++ b/Tomograph.lean
@@ -0,0 +1,5 @@
+
+
+def main (args : List String) : IO Unit := do
+  let command :: args := args | IO.eprintln "Must supply a command"
+  IO.println s!"{command}"
diff --git a/lakefile.lean b/lakefile.lean
index 5cfaf87..194fbfc 100644
--- a/lakefile.lean
+++ b/lakefile.lean
@@ -19,8 +19,8 @@ lean_exe repl {
 }
 
 @[default_target]
-lean_exe tomogram {
-  root := `Tomogram
+lean_exe tomograph {
+  root := `Tomograph
   -- Solves the native symbol not found problem
   supportInterpreter := true
 }