diff --git a/vm/booleans.cpp b/vm/booleans.cpp
index 8407e10099..6a1bb79298 100644
--- a/vm/booleans.cpp
+++ b/vm/booleans.cpp
@@ -3,14 +3,24 @@
 namespace factor
 {
 
-VM_C_API void box_boolean(bool value)
+void factorvm::box_boolean(bool value)
 {
 	dpush(value ? T : F);
 }
 
-VM_C_API bool to_boolean(cell value)
+VM_C_API void box_boolean(bool value)
+{
+	return vm->box_boolean(value);
+}
+
+bool factorvm::to_boolean(cell value)
 {
 	return value != F;
 }
 
+VM_C_API bool to_boolean(cell value)
+{
+	return vm->to_boolean(value);
+}
+
 }
diff --git a/vm/vm.hpp b/vm/vm.hpp
index 087e1ebe95..fbdfe125d3 100644
--- a/vm/vm.hpp
+++ b/vm/vm.hpp
@@ -221,6 +221,10 @@ struct factorvm {
 	inline void vmprim_string_nth();
 	inline void vmprim_set_string_nth_fast();
 	inline void vmprim_set_string_nth_slow();
+
+	//booleans
+	void box_boolean(bool value);
+	bool to_boolean(cell value);
 	// next method here: