diff --git a/Cargo.lock b/Cargo.lock
index 8983f75..fbdf03c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1322,7 +1322,7 @@ dependencies = [
 
 [[package]]
 name = "msg_tool"
-version = "0.2.15"
+version = "0.2.16"
 dependencies = [
  "adler",
  "anyhow",
diff --git a/Cargo.toml b/Cargo.toml
index e37206c..a271193 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "msg_tool"
-version = "0.2.15"
+version = "0.2.16"
 edition = "2024"
 repository = "https://github.com/lifegpc/msg-tool"
 description = "A command-line tool for exporting, importing, packing, and unpacking script files."
diff --git a/src/ext/psb.rs b/src/ext/psb.rs
index dcf668f..44bc05c 100644
--- a/src/ext/psb.rs
+++ b/src/ext/psb.rs
@@ -11,6 +11,7 @@ use emote_psb::types::string::*;
 use emote_psb::types::*;
 #[cfg(feature = "json")]
 use json::JsonValue;
+#[cfg(feature = "json")]
 use json::number::Number;
 use serde::ser::SerializeStruct;
 use serde::{Deserialize, Serialize};
@@ -19,6 +20,7 @@ use std::collections::{BTreeMap, HashMap};
 use std::io::{Read, Seek};
 use std::ops::{Index, IndexMut};
 
+#[cfg(feature = "json")]
 fn f32_to_number(x: f32) -> Number {
     if !x.is_finite() {
         return Number::from_parts(true, 0, 0);