diff --git a/nac3core/src/codegen/irrt/mod.rs b/nac3core/src/codegen/irrt/mod.rs
index 1fa10e7d..7618463a 100644
--- a/nac3core/src/codegen/irrt/mod.rs
+++ b/nac3core/src/codegen/irrt/mod.rs
@@ -1396,7 +1396,7 @@ pub fn call_nac3_len<'ctx>(
     let function = get_size_type_dependent_function(
         ctx,
         size_type,
-        "__nac3_ndarray_deduce_ndims_after_slicing",
+        "__nac3_ndarray_len",
         || {
             get_sliceindex_type(ctx.ctx).fn_type(
                 &[