diff --git a/build/fbcode_builder/manifests/glog b/build/fbcode_builder/manifests/glog
index 2649eaad1805..b4a8fabecc2a 100644
--- a/build/fbcode_builder/manifests/glog
+++ b/build/fbcode_builder/manifests/glog
@@ -24,7 +24,7 @@ HAVE_TR1_UNORDERED_SET=OFF
 [homebrew]
 glog
 
-# on ubuntu glog brings in liblzma-dev, which in turn breaks watchman tests
+# on ubuntu this pulls in libunwind < 1.8.0 which breaks watchman tests
 [debs.not(distro=ubuntu)]
 libgoogle-glog-dev
 
diff --git a/build/fbcode_builder/manifests/libunwind b/build/fbcode_builder/manifests/libunwind
index dfaa64f4f6f2..43a1ca9a7cfd 100644
--- a/build/fbcode_builder/manifests/libunwind
+++ b/build/fbcode_builder/manifests/libunwind
@@ -5,7 +5,7 @@ name = libunwind
 libunwind-devel
 libunwind
 
-# on ubuntu this brings in liblzma-dev, which in turn breaks watchman tests
+# libunwind < 1.8.0 breaks watchman tests
 [debs.not(distro=ubuntu)]
 libunwind-dev
 
diff --git a/build/fbcode_builder/manifests/xz b/build/fbcode_builder/manifests/xz
index 22f38ae2739c..670111081506 100644
--- a/build/fbcode_builder/manifests/xz
+++ b/build/fbcode_builder/manifests/xz
@@ -1,8 +1,7 @@
 [manifest]
 name = xz
 
-# ubuntu's package causes watchman's tests to hang
-[debs.not(distro=ubuntu)]
+[debs]
 liblzma-dev
 
 [homebrew]