diff --git a/build/fbcode_builder/manifests/eden b/build/fbcode_builder/manifests/eden
index a6ea9b00e..541de973f 100644
--- a/build/fbcode_builder/manifests/eden
+++ b/build/fbcode_builder/manifests/eden
@@ -122,5 +122,8 @@ USE_CARGO_VENDOR=ON
 [cmake.defines.fb=on]
 IS_FB_BUILD=ON
 
+[cmake.defines.test=on]
+BUILD_TESTS=ON
+
 [depends.environment]
 EDEN_VERSION_OVERRIDE