diff --git a/support/build/src/manifest/format.rs b/support/build/src/manifest/format.rs
index e657b740..13c257ce 100644
--- a/support/build/src/manifest/format.rs
+++ b/support/build/src/manifest/format.rs
@@ -61,7 +61,7 @@ impl<T: crate::value::Value> Manifest<T> {
 		}
 		for (key, value) in &self.extra {
 			if let Some(value) = value.as_str() {
-				result.push_str(&to_row(key, format!("{value}")));
+				result.push_str(&to_row(key, value));
 			} else if let Some(value) = value.as_bool() {
 				result.push_str(&to_row(key, format!("{value}")));
 			} else {