diff --git a/packages/stylist-core/Cargo.toml b/packages/stylist-core/Cargo.toml
index 19c801d..6f1a291 100644
--- a/packages/stylist-core/Cargo.toml
+++ b/packages/stylist-core/Cargo.toml
@@ -37,3 +37,4 @@ wasm-bindgen-test = "0.3.33"
 
 [features]
 parser = ["dep:nom"]
+proc_macro = []
\ No newline at end of file
diff --git a/packages/stylist-core/src/error.rs b/packages/stylist-core/src/error.rs
index ff64393..296999d 100644
--- a/packages/stylist-core/src/error.rs
+++ b/packages/stylist-core/src/error.rs
@@ -16,6 +16,7 @@ pub enum Error {
     ///
     /// This is usually raised when the style element failed to mount.
     #[error("Failed to Interact with Web API. Are you running in Browser?")]
+    #[cfg(not(feature = "proc_macro"))]
     Web(Option<wasm_bindgen::JsValue>),
 
     /// Failed to read styles from the StyleManager.
diff --git a/packages/stylist-macros/Cargo.toml b/packages/stylist-macros/Cargo.toml
index db6e308..6e0c5a3 100644
--- a/packages/stylist-macros/Cargo.toml
+++ b/packages/stylist-macros/Cargo.toml
@@ -25,7 +25,7 @@ rust-version = "1.60"
 proc-macro = true
 
 [dependencies]
-stylist-core = { path = "../stylist-core", version = "0.12", features = ["parser"] }
+stylist-core = { path = "../stylist-core", version = "0.12", features = ["parser", "proc_macro"] }
 
 litrs = "0.4.0"
 proc-macro-error = "1.0.4"