diff --git a/src/llvm_backend.cpp b/src/llvm_backend.cpp
index 0bf3d1125..34afb9c8c 100644
--- a/src/llvm_backend.cpp
+++ b/src/llvm_backend.cpp
@@ -239,9 +239,9 @@ gb_internal lbContextData *lb_push_context_onto_stack(lbProcedure *p, lbAddr ctx
 
 gb_internal String lb_internal_gen_name_from_type(char const *prefix, Type *type) {
 	gbString str = gb_string_make(permanent_allocator(), prefix);
-	u64 hash = type_hash_canonical_type(type);
-	str = gb_string_appendc(str, "-");
-	str = gb_string_append_fmt(str, "%llu", cast(unsigned long long)hash);
+	str = gb_string_appendc(str, "$$");
+	gbString ct = temp_canonical_string(type);
+	str = gb_string_append_length(str, ct, gb_string_length(ct));
 	String proc_name = make_string(cast(u8 const *)str, gb_string_length(str));
 	return proc_name;
 }