diff --git a/src/vm.rs b/src/vm.rs
index c7e2d07..9925f97 100644
--- a/src/vm.rs
+++ b/src/vm.rs
@@ -127,12 +127,6 @@ impl<'c> Vm<'c> {
         &self.stack()[self.frame().stack_base..]
     }
 
-    /// Mutably gets the current stack, starting at the frame's stack base.
-    pub fn frame_stack_mut(&mut self) -> &mut [ObjP] {
-        let index = self.frame().stack_base;
-        &mut self.stack_mut()[index..]
-    }
-
     /// Current stack frame.
     pub fn frame(&self) -> &Frame {
         self.frames.last().unwrap()