diff --git a/build.json b/build.json
index aeb36fd7f3d..0c64ff50b39 100644
--- a/build.json
+++ b/build.json
@@ -1361,6 +1361,9 @@
         "grpc",
         "gpr_test_util",
         "gpr"
+      ],
+      "platforms": [
+        "posix"
       ]
     },
     {
diff --git a/test/core/end2end/gen_build_json.py b/test/core/end2end/gen_build_json.py
index fb13c7840c8..f9a41a8fe08 100755
--- a/test/core/end2end/gen_build_json.py
+++ b/test/core/end2end/gen_build_json.py
@@ -101,7 +101,7 @@ def main():
               'language': 'c',
               'secure': 'check' if END2END_FIXTURES[f].secure else 'no',
               'src': ['test/core/end2end/fixtures/%s.c' % f],
-              'platforms': [ 'posix' ] if f.endswith('_posix') else [ 'windows', 'posix' ],
+              'platforms': [ 'posix' ] if f.endswith('_posix') else END2END_FIXTURES[f].platforms,
           }
           for f in sorted(END2END_FIXTURES.keys())] + [
           {
diff --git a/tools/run_tests/tests.json b/tools/run_tests/tests.json
index f5c2e87a9ca..dfe099aa59f 100644
--- a/tools/run_tests/tests.json
+++ b/tools/run_tests/tests.json
@@ -353,7 +353,6 @@
     "language": "c", 
     "name": "httpcli_test", 
     "platforms": [
-      "windows", 
       "posix"
     ]
   },