diff --git a/DEPS b/DEPS
index 8af59fd2b3c..8f6b6eb1951 100644
--- a/DEPS
+++ b/DEPS
@@ -436,21 +436,6 @@ hooks = [
       Var('dart_root') + "/third_party/firefox_jsshell",
     ],
   },
-  {
-    "name": "7zip",
-    "pattern": ".",
-    "action": [
-      "download_from_google_storage",
-      "--no_auth",
-      "--no_resume",
-      "--bucket",
-      "dart-dependencies",
-      "--platform=win32",
-      "--extract",
-      "-s",
-      Var('dart_root') + "/third_party/7zip.tar.gz.sha1",
-    ],
-  },
   {
     "name": "front_end_benchmark_data",
     "pattern": ".",
@@ -511,3 +496,23 @@ hooks = [
     'action': ['python', 'sdk/build/vs_toolchain.py', 'update'],
   },
 ]
+
+hooks_os = {
+  "win": [
+    {
+      "name": "7zip",
+      "pattern": ".",
+      "action": [
+        "download_from_google_storage",
+        "--no_auth",
+        "--no_resume",
+        "--bucket",
+        "dart-dependencies",
+        "--platform=win32",
+        "--extract",
+        "-s",
+        Var('dart_root') + "/third_party/7zip.tar.gz.sha1",
+      ],
+    },
+  ]
+}
diff --git a/build/linux/sysroot_scripts/install-sysroot.py b/build/linux/sysroot_scripts/install-sysroot.py
index 4500023870b..304824d91bc 100755
--- a/build/linux/sysroot_scripts/install-sysroot.py
+++ b/build/linux/sysroot_scripts/install-sysroot.py
@@ -131,8 +131,6 @@ def InstallSysroot(target_platform, target_arch):
   if os.path.exists(stamp):
     with open(stamp) as s:
       if s.read() == url:
-        print '%s %s sysroot image already up to date: %s' % \
-            (target_platform, target_arch, sysroot)
         return
 
   print 'Installing Debian %s %s root image: %s' % \