diff --git a/src/api/limits.rs b/src/api/limits.rs
index 7d9fd36c..ec609944 100644
--- a/src/api/limits.rs
+++ b/src/api/limits.rs
@@ -6,6 +6,34 @@ use std::num::{NonZeroU64, NonZeroUsize};
 #[cfg(feature = "no_std")]
 use std::prelude::v1::*;
 
+pub mod defaults {
+    #[cfg(not(feature = "unchecked"))]
+    #[cfg(debug_assertions)]
+    #[cfg(not(feature = "no_function"))]
+    pub const MAX_CALL_STACK_DEPTH: usize = 8;
+    #[cfg(not(feature = "unchecked"))]
+    #[cfg(debug_assertions)]
+    pub const MAX_EXPR_DEPTH: usize = 32;
+    #[cfg(not(feature = "unchecked"))]
+    #[cfg(not(feature = "no_function"))]
+    #[cfg(debug_assertions)]
+    pub const MAX_FUNCTION_EXPR_DEPTH: usize = 16;
+
+    #[cfg(not(feature = "unchecked"))]
+    #[cfg(not(debug_assertions))]
+    #[cfg(not(feature = "no_function"))]
+    pub const MAX_CALL_STACK_DEPTH: usize = 64;
+    #[cfg(not(feature = "unchecked"))]
+    #[cfg(not(debug_assertions))]
+    pub const MAX_EXPR_DEPTH: usize = 64;
+    #[cfg(not(feature = "unchecked"))]
+    #[cfg(not(feature = "no_function"))]
+    #[cfg(not(debug_assertions))]
+    pub const MAX_FUNCTION_EXPR_DEPTH: usize = 32;
+
+    pub const MAX_DYNAMIC_PARAMETERS: usize = 16;
+}
+
 /// A type containing all the limits imposed by the [`Engine`].
 ///
 /// Not available under `unchecked`.
@@ -56,10 +84,10 @@ impl Limits {
     pub const fn new() -> Self {
         Self {
             #[cfg(not(feature = "no_function"))]
-            max_call_stack_depth: crate::engine::MAX_CALL_STACK_DEPTH,
-            max_expr_depth: NonZeroUsize::new(crate::engine::MAX_EXPR_DEPTH),
+            max_call_stack_depth: defaults::MAX_CALL_STACK_DEPTH,
+            max_expr_depth: NonZeroUsize::new(defaults::MAX_EXPR_DEPTH),
             #[cfg(not(feature = "no_function"))]
-            max_function_expr_depth: NonZeroUsize::new(crate::engine::MAX_FUNCTION_EXPR_DEPTH),
+            max_function_expr_depth: NonZeroUsize::new(defaults::MAX_FUNCTION_EXPR_DEPTH),
             max_operations: None,
             #[cfg(not(feature = "no_module"))]
             max_modules: usize::MAX,
diff --git a/src/engine.rs b/src/engine.rs
index 145ced34..49ea0512 100644
--- a/src/engine.rs
+++ b/src/engine.rs
@@ -307,32 +307,6 @@ impl fmt::Debug for Imports {
     }
 }
 
-#[cfg(not(feature = "unchecked"))]
-#[cfg(debug_assertions)]
-#[cfg(not(feature = "no_function"))]
-pub const MAX_CALL_STACK_DEPTH: usize = 8;
-#[cfg(not(feature = "unchecked"))]
-#[cfg(debug_assertions)]
-pub const MAX_EXPR_DEPTH: usize = 32;
-#[cfg(not(feature = "unchecked"))]
-#[cfg(not(feature = "no_function"))]
-#[cfg(debug_assertions)]
-pub const MAX_FUNCTION_EXPR_DEPTH: usize = 16;
-
-#[cfg(not(feature = "unchecked"))]
-#[cfg(not(debug_assertions))]
-#[cfg(not(feature = "no_function"))]
-pub const MAX_CALL_STACK_DEPTH: usize = 64;
-#[cfg(not(feature = "unchecked"))]
-#[cfg(not(debug_assertions))]
-pub const MAX_EXPR_DEPTH: usize = 64;
-#[cfg(not(feature = "unchecked"))]
-#[cfg(not(feature = "no_function"))]
-#[cfg(not(debug_assertions))]
-pub const MAX_FUNCTION_EXPR_DEPTH: usize = 32;
-
-pub const MAX_DYNAMIC_PARAMETERS: usize = 16;
-
 pub const KEYWORD_PRINT: &str = "print";
 pub const KEYWORD_DEBUG: &str = "debug";
 pub const KEYWORD_TYPE_OF: &str = "type_of";
diff --git a/src/func/call.rs b/src/func/call.rs
index f1cf279b..f78dd894 100644
--- a/src/func/call.rs
+++ b/src/func/call.rs
@@ -2,11 +2,11 @@
 
 use super::native::{CallableFunction, FnAny};
 use super::{get_builtin_binary_op_fn, get_builtin_op_assignment_fn};
+use crate::api::limits::defaults::MAX_DYNAMIC_PARAMETERS;
 use crate::ast::FnCallHashes;
 use crate::engine::{
     EvalState, FnResolutionCacheEntry, Imports, KEYWORD_DEBUG, KEYWORD_EVAL, KEYWORD_FN_PTR,
     KEYWORD_FN_PTR_CALL, KEYWORD_FN_PTR_CURRY, KEYWORD_IS_DEF_VAR, KEYWORD_PRINT, KEYWORD_TYPE_OF,
-    MAX_DYNAMIC_PARAMETERS,
 };
 use crate::module::NamespaceRef;
 use crate::tokenizer::Token;