diff --git a/src/ffi/static_data/mod.rs b/src/ffi/static_data/mod.rs
index 09a1620..676d945 100644
--- a/src/ffi/static_data/mod.rs
+++ b/src/ffi/static_data/mod.rs
@@ -1,4 +1,4 @@
-use crate::ffi::{ExternPointer, OwnedPtr};
+use crate::ffi::{ExternPointer, IdentifiablePointer, OwnedPtr};
 use crate::static_data::EffectParameter;
 use crate::StringKey;
 use std::ffi::{c_char, CStr, CString};
@@ -27,27 +27,27 @@ mod statistic_set;
 
 /// Instantiates an effect parameter with a boolean.
 #[no_mangle]
-extern "C" fn effect_parameter_new_bool(value: u8) -> OwnedPtr<EffectParameter> {
-    Box::into_raw(Box::new((value == 1).into()))
+extern "C" fn effect_parameter_new_bool(value: u8) -> IdentifiablePointer<EffectParameter> {
+    Box::<EffectParameter>::new((value == 1).into()).into()
 }
 
 /// Instantiates an effect parameter with an integer.
 #[no_mangle]
-extern "C" fn effect_parameter_new_int(value: i64) -> OwnedPtr<EffectParameter> {
-    Box::into_raw(Box::new(value.into()))
+extern "C" fn effect_parameter_new_int(value: i64) -> IdentifiablePointer<EffectParameter> {
+    Box::<EffectParameter>::new(value.into()).into()
 }
 
 /// Instantiates an effect parameter with a float.
 #[no_mangle]
-extern "C" fn effect_parameter_new_float(value: f32) -> OwnedPtr<EffectParameter> {
-    Box::into_raw(Box::new(value.into()))
+extern "C" fn effect_parameter_new_float(value: f32) -> IdentifiablePointer<EffectParameter> {
+    Box::<EffectParameter>::new(value.into()).into()
 }
 
 /// Instantiates an effect parameter with a string.
 #[no_mangle]
-unsafe extern "C" fn effect_parameter_new_string(value: *const c_char) -> OwnedPtr<EffectParameter> {
+unsafe extern "C" fn effect_parameter_new_string(value: *const c_char) -> IdentifiablePointer<EffectParameter> {
     let sk: StringKey = CStr::from_ptr(value).to_str().unwrap().into();
-    Box::into_raw(Box::new(sk.into()))
+    Box::<EffectParameter>::new(sk.into()).into()
 }
 
 /// Drop an effect parameter.