diff --git a/internal/bundler/linker.go b/internal/bundler/linker.go
index babbcea7cfa..8e8c3ce2ed5 100644
--- a/internal/bundler/linker.go
+++ b/internal/bundler/linker.go
@@ -3782,7 +3782,12 @@ func (repr *chunkReprJS) generate(c *linkerContext, chunk *chunkInfo) func(gener
 			if !isFirstMeta {
 				jMeta.AddString("\n      ")
 			}
-			jMeta.AddString("],\n      \"inputs\": {")
+			if chunk.isEntryPoint {
+				entryPoint := c.files[chunk.sourceIndex].source.PrettyPath
+				jMeta.AddString(fmt.Sprintf("],\n      \"entryPoint\": %s,\n      \"inputs\": {", js_printer.QuoteForJSON(entryPoint, c.options.ASCIIOnly)))
+			} else {
+				jMeta.AddString("],\n      \"inputs\": {")
+			}
 		}
 
 		// Concatenate the generated JavaScript chunks together
diff --git a/lib/types.ts b/lib/types.ts
index 40e1223dc39..cc148dc241b 100644
--- a/lib/types.ts
+++ b/lib/types.ts
@@ -277,6 +277,7 @@ export interface Metadata {
         kind: MetadataImportKind
       }[]
       exports: string[]
+      entryPoint?: string
     }
   }
 }
diff --git a/scripts/js-api-tests.js b/scripts/js-api-tests.js
index 6c8a7c0c8c5..617c727cd4d 100644
--- a/scripts/js-api-tests.js
+++ b/scripts/js-api-tests.js
@@ -824,6 +824,7 @@ body {
     assert.deepStrictEqual(json.inputs[makePath(entry)].imports, [])
     assert.deepStrictEqual(json.outputs[makePath(outfile)].imports, [])
     assert.deepStrictEqual(json.outputs[makePath(outfile)].exports, [])
+    assert.deepStrictEqual(json.outputs[makePath(outfile)].entryPoint, makePath(entry))
   },
 
   async metafileCJSInFormatESM({ esbuild, testDir }) {
@@ -947,6 +948,7 @@ body {
     assert.deepStrictEqual(json.inputs[makePath(nested3)].imports, [])
     assert.deepStrictEqual(json.outputs[makePath(outfile)].imports, [])
     assert.deepStrictEqual(json.outputs[makePath(outfile)].exports, ['nested1', 'nested2', 'topLevel'])
+    assert.deepStrictEqual(json.outputs[makePath(outfile)].entryPoint, makePath(entry))
   },
 
   async metafileCSS({ esbuild, testDir }) {