diff --git a/emsdk_manifest.json b/emsdk_manifest.json
index 7b4834478e..3c0c5ca9f7 100644
--- a/emsdk_manifest.json
+++ b/emsdk_manifest.json
@@ -679,12 +679,6 @@
     "uses": ["fastcomp-clang-nightly-e%nightly-llvm-64bit%-64bit", "node-4.1.1-64bit", "emscripten-nightly-%nightly-llvm-64bit%"],
     "os": "unix"
   },
-  {
-    "version": "1.37.1",
-    "bitness": 64,
-    "uses": ["clang-e1.37.1-64bit", "node-4.1.1-64bit", "python-2.7.13.1-64bit", "emscripten-1.37.1"],
-    "os": "win"
-  },
   {
     "version": "releases-upstream-%releases-tag%",
     "bitness": 64,