diff --git a/gradle-conventions/src/main/kotlin/conventions-publishing.gradle.kts b/gradle-conventions/src/main/kotlin/conventions-publishing.gradle.kts
index 6a36b5e8..d381ac38 100644
--- a/gradle-conventions/src/main/kotlin/conventions-publishing.gradle.kts
+++ b/gradle-conventions/src/main/kotlin/conventions-publishing.gradle.kts
@@ -116,6 +116,8 @@ fun RepositoryHandler.configureSpaceRepository() {
     }
 }
 
+val globalRootDir: String by extra
+
 fun RepositoryHandler.configureLocalDevRepository() {
     // Something that's straightforward to "clean" for development, not mavenLocal
     maven("$globalRootDir/build/repo") {