diff --git a/crates/bevy_mod_scripting_functions/Cargo.toml b/crates/bevy_mod_scripting_functions/Cargo.toml
index 765efb3694..af24be2180 100644
--- a/crates/bevy_mod_scripting_functions/Cargo.toml
+++ b/crates/bevy_mod_scripting_functions/Cargo.toml
@@ -14,7 +14,6 @@ readme = "readme.md"
 [features]
 core_functions = []
 bevy_bindings = []
-test_functions = ["test_utils", "regex"]
 
 
 [dependencies]
@@ -34,5 +33,3 @@ bevy = { workspace = true, features = [
 uuid = "1.11"
 smol_str = "0.2.2"
 bevy_mod_scripting_core = { workspace = true }
-test_utils = { workspace = true, optional = true }
-regex = { version = "1.11", optional = true }
diff --git a/crates/bevy_mod_scripting_functions/src/lib.rs b/crates/bevy_mod_scripting_functions/src/lib.rs
index db513ec87f..3293a82e77 100644
--- a/crates/bevy_mod_scripting_functions/src/lib.rs
+++ b/crates/bevy_mod_scripting_functions/src/lib.rs
@@ -2,10 +2,6 @@ use ::bevy::prelude::*;
 #[cfg(feature = "bevy_bindings")]
 pub mod bevy_bindings;
 pub mod core;
-
-#[cfg(feature = "test_functions")]
-pub mod test_functions;
-
 pub use core::*;
 
 pub struct ScriptFunctionsPlugin;
@@ -14,8 +10,6 @@ impl Plugin for ScriptFunctionsPlugin {
     fn build(&self, app: &mut App) {
         register_bevy_bindings(app);
         register_core_functions(app);
-        #[cfg(feature = "test_functions")]
-        test_functions::register_test_functions(app);
 
         // TODO: if bevy ever does this itself we should remove this
         app.world_mut().register_component::<Parent>();
diff --git a/crates/languages/bevy_mod_scripting_lua/Cargo.toml b/crates/languages/bevy_mod_scripting_lua/Cargo.toml
index 38e47205e0..5959230be4 100644
--- a/crates/languages/bevy_mod_scripting_lua/Cargo.toml
+++ b/crates/languages/bevy_mod_scripting_lua/Cargo.toml
@@ -48,11 +48,6 @@ smallvec = "1.13"
 
 [dev-dependencies]
 script_integration_test_harness = { workspace = true }
-bevy_mod_scripting_functions = { workspace = true, features = [
-    "core_functions",
-    "bevy_bindings",
-    "test_functions",
-] }
 libtest-mimic = "0.8"
 regex = "1.11"
 
diff --git a/crates/languages/bevy_mod_scripting_rhai/Cargo.toml b/crates/languages/bevy_mod_scripting_rhai/Cargo.toml
index 153894de3a..14dfdbb75b 100644
--- a/crates/languages/bevy_mod_scripting_rhai/Cargo.toml
+++ b/crates/languages/bevy_mod_scripting_rhai/Cargo.toml
@@ -24,11 +24,6 @@ bevy_mod_scripting_functions = { workspace = true, features = [
 
 [dev-dependencies]
 script_integration_test_harness = { workspace = true }
-bevy_mod_scripting_functions = { workspace = true, features = [
-    "core_functions",
-    "bevy_bindings",
-    "test_functions",
-] }
 libtest-mimic = "0.8"
 regex = "1.11"
 
diff --git a/crates/script_integration_test_harness/Cargo.toml b/crates/script_integration_test_harness/Cargo.toml
index 7c8f2f1c74..2f30451def 100644
--- a/crates/script_integration_test_harness/Cargo.toml
+++ b/crates/script_integration_test_harness/Cargo.toml
@@ -11,5 +11,5 @@ bevy_mod_scripting_core = { workspace = true }
 bevy_mod_scripting_functions = { workspace = true, features = [
     "bevy_bindings",
     "core_functions",
-    "test_functions",
 ] }
+regex = { version = "1.11" }
diff --git a/crates/script_integration_test_harness/src/lib.rs b/crates/script_integration_test_harness/src/lib.rs
index 5f43e75d6e..d0c7d0b0e0 100644
--- a/crates/script_integration_test_harness/src/lib.rs
+++ b/crates/script_integration_test_harness/src/lib.rs
@@ -1,3 +1,5 @@
+pub mod test_functions;
+
 use bevy::{
     app::App,
     prelude::{Entity, World},
@@ -14,6 +16,7 @@ use bevy_mod_scripting_core::{
     IntoScriptPluginParams,
 };
 use bevy_mod_scripting_functions::ScriptFunctionsPlugin;
+use test_functions::register_test_functions;
 use test_utils::test_data::setup_integration_test;
 
 pub fn execute_integration_test<
@@ -29,6 +32,8 @@ pub fn execute_integration_test<
     let mut app = setup_integration_test(init);
 
     app.add_plugins(ScriptFunctionsPlugin);
+    register_test_functions(&mut app);
+
     init_app(&mut app);
 
     app.cleanup();
diff --git a/crates/bevy_mod_scripting_functions/src/test_functions.rs b/crates/script_integration_test_harness/src/test_functions.rs
similarity index 100%
rename from crates/bevy_mod_scripting_functions/src/test_functions.rs
rename to crates/script_integration_test_harness/src/test_functions.rs