diff --git a/tools/ml_selector/BUCK b/tools/ml_selector/BUCK
index 273a04e09..f60155187 100644
--- a/tools/ml_selector/BUCK
+++ b/tools/ml_selector/BUCK
@@ -11,6 +11,10 @@ zs_cxxlibrary(
     compiler_flags = [
         "-Wno-unused-exception-parameter",  # For XGBoost warnings
     ],
+    visibility = [
+        "fbcode//common/managed_compression/...",
+        "//openzl/...",
+    ],
     deps = [
         "../..:zstronglib",
         "../../cpp:openzl_cpp",
diff --git a/tools/training/ace/BUCK b/tools/training/ace/BUCK
index 7eccf4273..653655091 100644
--- a/tools/training/ace/BUCK
+++ b/tools/training/ace/BUCK
@@ -30,6 +30,10 @@ cpp_library(
         "crowding_distance_selector.h",
     ]),
     header_namespace = "",
+    visibility = [
+        "fbcode//common/managed_compression/...",
+        "//openzl/...",
+    ],
     deps = [
         "../../..:zstronglib",
     ],