diff --git a/lib/rivet/src/ast/TypeInfo.ri b/lib/rivet/src/ast/TypeInfo.ri
index 9cbc1d282..7a2f1c7d5 100644
--- a/lib/rivet/src/ast/TypeInfo.ri
+++ b/lib/rivet/src/ast/TypeInfo.ri
@@ -140,7 +140,7 @@ pub enum TypeInfo < traits.Stringable {
     }
 
     #[inline]
-    pub func is_mut_arr_or_vec(self) -> bool {
+    pub func is_mut_arr_or_dyn_array(self) -> bool {
         return match self is {
             .Array(arr) -> arr.is_mut,
             .DynArray(vec) -> vec.is_mut,
diff --git a/lib/rivet/src/checker/exprs.ri b/lib/rivet/src/checker/exprs.ri
index b7fcdb86d..b30a7bd9f 100644
--- a/lib/rivet/src/checker/exprs.ri
+++ b/lib/rivet/src/checker/exprs.ri
@@ -263,7 +263,7 @@ extend Checker {
             if value_sym.info is .Array(array_info) {
                 size = array_info.size;
             }
-            is_mut = value_sym.info.is_mut_arr_or_vec();
+            is_mut = value_sym.info.is_mut_arr_or_dyn_array();
         } else if !self.expected_type.is_void() {
             has_expected_type = true;
             value_type = self.expected_type;
@@ -416,7 +416,7 @@ extend Checker {
             .Array, .DynArray -> {
                 elem_type := left_sym.info.elem_type()?;
                 if index.index is .Range {
-                    is_mut := left_sym.info.is_mut_arr_or_vec();
+                    is_mut := left_sym.info.is_mut_arr_or_dyn_array();
                     if left_sym.info is .DynArray {
                         index.left_type
                     } else {
diff --git a/lib/rivet/src/checker/mod.ri b/lib/rivet/src/checker/mod.ri
index 4af05b078..2c2f37d60 100644
--- a/lib/rivet/src/checker/mod.ri
+++ b/lib/rivet/src/checker/mod.ri
@@ -339,7 +339,7 @@ pub struct Checker {
                     return;
                 }
                 expr_sym := index.left_type.symbol()?;
-                if !expr_sym.info.is_mut_arr_or_vec() {
+                if !expr_sym.info.is_mut_arr_or_dyn_array() {
                     report.error(
                         "cannot modify elements of an immutable {}".fmt(expr_sym.info),
                         index.pos
diff --git a/lib/rivet/src/checker/stmts.ri b/lib/rivet/src/checker/stmts.ri
index 54cb402e1..0b44571bf 100644
--- a/lib/rivet/src/checker/stmts.ri
+++ b/lib/rivet/src/checker/stmts.ri
@@ -74,7 +74,7 @@ extend Checker {
             elem_sym := elem_type.symbol()?;
             if for_stmt.values.len == 1 {
                 value0 := for_stmt.values[0];
-                if value0.is_mut and !iterable_sym.info.is_mut_arr_or_vec() {
+                if value0.is_mut and !iterable_sym.info.is_mut_arr_or_dyn_array() {
                     report.error(
                         "cannot modify immutable {}".fmt(iterable_sym.info),
                         for_stmt.iterable.position()
diff --git a/rivetc/src/codegen/__init__.py b/rivetc/src/codegen/__init__.py
index 10d6f99d3..3dbe78bb3 100644
--- a/rivetc/src/codegen/__init__.py
+++ b/rivetc/src/codegen/__init__.py
@@ -103,7 +103,7 @@ def gen_source_files(self, source_files):
                 ir.Selector(ir.UINT64_T, testRunner, ir.Name("skip_tests")),
                 ir.IntLit(ir.UINT64_T, "0")
             )
-            tests_vec = ir.Selector(
+            tests_dyn_array = ir.Selector(
                 ir.DYN_ARRAY_T.ptr(True), testRunner, ir.Name("tests")
             )
             test_t = ir.TEST_T.ptr()