--- a/runtime/opal/src/lib.rs
+++ b/runtime/opal/src/lib.rs
@@ -56,9 +56,9 @@
 	impl_version: 0,
 	apis: RUNTIME_API_VERSIONS,
 	transaction_version: 3,
-	#[cfg(feature="state-version-0")]
+	#[cfg(feature = "state-version-0")]
 	state_version: 0,
-	#[cfg(not(feature="state-version-0"))]
+	#[cfg(not(feature = "state-version-0"))]
 	state_version: 1,
 };
 
--- a/runtime/quartz/src/lib.rs
+++ b/runtime/quartz/src/lib.rs
@@ -59,9 +59,9 @@
 	impl_version: 0,
 	apis: RUNTIME_API_VERSIONS,
 	transaction_version: 3,
-	#[cfg(feature="state-version-0")]
+	#[cfg(feature = "state-version-0")]
 	state_version: 0,
-	#[cfg(not(feature="state-version-0"))]
+	#[cfg(not(feature = "state-version-0"))]
 	state_version: 1,
 };
 
--- a/runtime/unique/src/lib.rs
+++ b/runtime/unique/src/lib.rs
@@ -56,9 +56,9 @@
 	impl_version: 0,
 	apis: RUNTIME_API_VERSIONS,
 	transaction_version: 3,
-	#[cfg(feature="state-version-0")]
+	#[cfg(feature = "state-version-0")]
 	state_version: 0,
-	#[cfg(not(feature="state-version-0"))]
+	#[cfg(not(feature = "state-version-0"))]
 	state_version: 1,
 };