diff --git a/types/isstream/index.d.ts b/types/isstream/index.d.ts
deleted file mode 100644
index 2dd8731df1..0000000000
--- a/types/isstream/index.d.ts
+++ /dev/null
@@ -1,39 +0,0 @@
-// Type definitions for isstream 0.1
-// Project: https://github.com/rvagg/isstream
-// Definitions by: My Self <https://github.com/me>
-// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-
-export = isstream;
-
-declare function isstream(obj: any): any;
-
-declare namespace isstream {
-    const prototype: {
-    };
-
-    function isDuplex(obj: any): any;
-
-    function isReadable(obj: any): any;
-
-    function isWritable(obj: any): any;
-
-    namespace isDuplex {
-        const prototype: {
-        };
-
-    }
-
-    namespace isReadable {
-        const prototype: {
-        };
-
-    }
-
-    namespace isWritable {
-        const prototype: {
-        };
-
-    }
-
-}
-
diff --git a/types/isstream/isstream-tests.ts b/types/isstream/isstream-tests.ts
deleted file mode 100644
index e69de29bb2..0000000000
diff --git a/types/isstream/tsconfig.json b/types/isstream/tsconfig.json
deleted file mode 100644
index ddea72dd3e..0000000000
--- a/types/isstream/tsconfig.json
+++ /dev/null
@@ -1,22 +0,0 @@
-{
-    "compilerOptions": {
-        "module": "commonjs",
-        "lib": [
-            "es6"
-        ],
-        "noImplicitAny": true,
-        "noImplicitThis": true,
-        "strictNullChecks": true,
-        "baseUrl": "../",
-        "typeRoots": [
-            "../"
-        ],
-        "types": [],
-        "noEmit": true,
-        "forceConsistentCasingInFileNames": true
-    },
-    "files": [
-        "index.d.ts",
-        "isstream-tests.ts"
-    ]
-}
diff --git a/types/isstream/tslint.json b/types/isstream/tslint.json
deleted file mode 100644
index 3db14f85ea..0000000000
--- a/types/isstream/tslint.json
+++ /dev/null
@@ -1 +0,0 @@
-{ "extends": "dtslint/dt.json" }