diff --git a/nac3core/src/symbol_resolver.rs b/nac3core/src/symbol_resolver.rs
index f6ce4fa3..67801633 100644
--- a/nac3core/src/symbol_resolver.rs
+++ b/nac3core/src/symbol_resolver.rs
@@ -367,7 +367,7 @@ impl dyn SymbolResolver + Send + Sync {
                     unreachable!("expected class definition")
                 }
             },
-            &mut |id| format!("var{}", id),
+            &mut |id| format!("typevar{}", id),
             &mut None,
         )
     }
diff --git a/nac3core/src/toplevel/composer.rs b/nac3core/src/toplevel/composer.rs
index 0261aa7d..85680113 100644
--- a/nac3core/src/toplevel/composer.rs
+++ b/nac3core/src/toplevel/composer.rs
@@ -1906,7 +1906,7 @@ impl TopLevelComposer {
                                         unreachable!("must be class id here")
                                     }
                                 },
-                                &mut |id| format!("tvar{}", id),
+                                &mut |id| format!("typevar{}", id),
                                 &mut None,
                             );
                             return Err(format!(
diff --git a/nac3core/src/toplevel/test.rs b/nac3core/src/toplevel/test.rs
index 41f7fa63..e74c21db 100644
--- a/nac3core/src/toplevel/test.rs
+++ b/nac3core/src/toplevel/test.rs
@@ -763,7 +763,7 @@ fn make_internal_resolver_with_tvar(
                 (name, {
                     let (ty, id) = unifier.get_fresh_var_with_range(range.as_slice(), None, None);
                     if print {
-                        println!("{}: {:?}, tvar{}", name, ty, id);
+                        println!("{}: {:?}, typevar{}", name, ty, id);
                     }
                     ty
                 })
@@ -791,7 +791,7 @@ impl<'a> Fold<Option<Type>> for TypeToStringFolder<'a> {
             self.unifier.internal_stringify(
                 ty,
                 &mut |id| format!("class{}", id.to_string()),
-                &mut |id| format!("tvar{}", id.to_string()),
+                &mut |id| format!("typevar{}", id.to_string()),
                 &mut None,
             )
         } else {
diff --git a/nac3core/src/toplevel/type_annotation.rs b/nac3core/src/toplevel/type_annotation.rs
index cc8b4b3e..bccd7867 100644
--- a/nac3core/src/toplevel/type_annotation.rs
+++ b/nac3core/src/toplevel/type_annotation.rs
@@ -356,7 +356,7 @@ pub fn get_type_from_type_annotation_kinds(
                                         unifier.internal_stringify(
                                             p,
                                             &mut |id| format!("class{}", id),
-                                            &mut |id| format!("tvar{}", id),
+                                            &mut |id| format!("typevar{}", id),
                                             &mut None
                                         ),
                                         *id
diff --git a/nac3core/src/typecheck/typedef/mod.rs b/nac3core/src/typecheck/typedef/mod.rs
index 9df1cd1c..16248f81 100644
--- a/nac3core/src/typecheck/typedef/mod.rs
+++ b/nac3core/src/typecheck/typedef/mod.rs
@@ -830,7 +830,7 @@ impl Unifier {
                     },
                 )
             },
-            &mut |id| format!("var{}", id),
+            &mut |id| format!("typevar{}", id),
             notes,
         )
     }