diff --git a/src/compiler/program.ts b/src/compiler/program.ts
index 7e01e56f0693d..6f7ffc2c3a972 100644
--- a/src/compiler/program.ts
+++ b/src/compiler/program.ts
@@ -2768,10 +2768,8 @@ namespace ts {
             if (options.composite) {
                 const rootPaths = rootNames.map(toPath);
                 for (const file of files) {
-                    // Ignore declaration files
-                    if (file.isDeclarationFile) continue;
-                    // Ignore json file thats from project reference
-                    if (isJsonSourceFile(file) && getResolvedProjectReferenceToRedirect(file.fileName)) continue;
+                    // Ignore file that is not emitted
+                    if (!sourceFileMayBeEmitted(file, options, isSourceFileFromExternalLibrary, getResolvedProjectReferenceToRedirect)) continue;
                     if (rootPaths.indexOf(file.path) === -1) {
                         programDiagnostics.add(createCompilerDiagnostic(Diagnostics.File_0_is_not_in_project_file_list_Projects_must_list_all_files_or_use_an_include_pattern, file.fileName));
                     }
diff --git a/tests/baselines/reference/compositeWithNodeModulesSourceFile.js b/tests/baselines/reference/compositeWithNodeModulesSourceFile.js
new file mode 100644
index 0000000000000..9a2caf39c61a3
--- /dev/null
+++ b/tests/baselines/reference/compositeWithNodeModulesSourceFile.js
@@ -0,0 +1,20 @@
+//// [tests/cases/compiler/compositeWithNodeModulesSourceFile.ts] ////
+
+//// [index.ts]
+export class c { }
+
+//// [test.ts]
+import myModule = require("myModule");
+new myModule.c();
+
+
+
+//// [test.js]
+"use strict";
+exports.__esModule = true;
+var myModule = require("myModule");
+new myModule.c();
+
+
+//// [test.d.ts]
+export {};
diff --git a/tests/baselines/reference/compositeWithNodeModulesSourceFile.symbols b/tests/baselines/reference/compositeWithNodeModulesSourceFile.symbols
new file mode 100644
index 0000000000000..9daaf1ad5ffd7
--- /dev/null
+++ b/tests/baselines/reference/compositeWithNodeModulesSourceFile.symbols
@@ -0,0 +1,14 @@
+=== /foo/test.ts ===
+import myModule = require("myModule");
+>myModule : Symbol(myModule, Decl(test.ts, 0, 0))
+
+new myModule.c();
+>myModule.c : Symbol(myModule.c, Decl(index.ts, 0, 0))
+>myModule : Symbol(myModule, Decl(test.ts, 0, 0))
+>c : Symbol(myModule.c, Decl(index.ts, 0, 0))
+
+
+=== /foo/node_modules/myModule/index.ts ===
+export class c { }
+>c : Symbol(c, Decl(index.ts, 0, 0))
+
diff --git a/tests/baselines/reference/compositeWithNodeModulesSourceFile.types b/tests/baselines/reference/compositeWithNodeModulesSourceFile.types
new file mode 100644
index 0000000000000..d34838ae88a09
--- /dev/null
+++ b/tests/baselines/reference/compositeWithNodeModulesSourceFile.types
@@ -0,0 +1,15 @@
+=== /foo/test.ts ===
+import myModule = require("myModule");
+>myModule : typeof myModule
+
+new myModule.c();
+>new myModule.c() : myModule.c
+>myModule.c : typeof myModule.c
+>myModule : typeof myModule
+>c : typeof myModule.c
+
+
+=== /foo/node_modules/myModule/index.ts ===
+export class c { }
+>c : c
+
diff --git a/tests/cases/compiler/compositeWithNodeModulesSourceFile.ts b/tests/cases/compiler/compositeWithNodeModulesSourceFile.ts
new file mode 100644
index 0000000000000..b2d0020156751
--- /dev/null
+++ b/tests/cases/compiler/compositeWithNodeModulesSourceFile.ts
@@ -0,0 +1,13 @@
+// @filename: /foo/tsconfig.json
+{
+    "compilerOptions": { "composite": true },
+    "exclude": [ "node_modules" ]
+}
+
+// @filename: /foo/node_modules/myModule/index.ts
+export class c { }
+
+// @filename: /foo/test.ts
+import myModule = require("myModule");
+new myModule.c();
+