diff --git a/build.gradle.kts b/build.gradle.kts
index f3196b21..f059861d 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -81,6 +81,7 @@ subprojects {
             flavorDimensions(defaultDimension)
 
             create("foss") {
+                isDefault = true
                 dimension = defaultDimension
                 versionNameSuffix = ".foss"