diff --git a/tests/cases/mime-groups.json b/tests/cases/mime-groups.json
index 7d764f3..377e8c4 100644
--- a/tests/cases/mime-groups.json
+++ b/tests/cases/mime-groups.json
@@ -31,11 +31,8 @@
     {"input": "application/zip",                   "groups": ["ZIP-based", "archive"]},
     {"input": "application/zip;x=x",               "groups": ["ZIP-based", "archive"]},
     {"input": "application/x-rar-compressed",      "groups": ["archive"]},
-    "application/zip also matches the ZIP-based group",
-    {"input": "application/zip",                   "groups": ["ZIP-based", "archive"]},
     {"input": "application/x-gzip",                "groups": ["archive"]},
     {"input": "application/x-rar-compressed;x=x",  "groups": ["archive"]},
-    {"input": "application/zip;x=x",               "groups": ["ZIP-based", "archive"]},
     {"input": "application/x-gzip;x=x",            "groups": ["archive"]},
     "XML is also scriptable",
     {"input": "x/x+xml",                           "groups": ["XML", "scriptable"]},