diff --git a/src/wasm/wasm-emscripten.cpp b/src/wasm/wasm-emscripten.cpp
index 3f521caf9d5..7ac7f480203 100644
--- a/src/wasm/wasm-emscripten.cpp
+++ b/src/wasm/wasm-emscripten.cpp
@@ -926,7 +926,7 @@ std::string EmscriptenGlueGenerator::generateEmscriptenMetadata(
       }
     }
   });
-  meta << "\n  ]\n";
+  meta << "\n  ],\n";
 
   meta << "  \"features\": [";
   commaFirst = true;
diff --git a/test/lld/duplicate_imports.wast.out b/test/lld/duplicate_imports.wast.out
index 9fdab56a93b..88f60d664f6 100644
--- a/test/lld/duplicate_imports.wast.out
+++ b/test/lld/duplicate_imports.wast.out
@@ -136,7 +136,7 @@
   },
   "invokeFuncs": [
     "invoke_ffd"
-  ]
+  ],
   "features": [
     "--mvp-features",
     "--enable-threads",
diff --git a/test/lld/em_asm.wast.mem.out b/test/lld/em_asm.wast.mem.out
index f10c49c8917..c8c193574cc 100644
--- a/test/lld/em_asm.wast.mem.out
+++ b/test/lld/em_asm.wast.mem.out
@@ -260,7 +260,7 @@
     "__data_end" : "652"
   },
   "invokeFuncs": [
-  ]
+  ],
   "features": [
     "--mvp-features",
     "--enable-threads",
diff --git a/test/lld/em_asm.wast.out b/test/lld/em_asm.wast.out
index 46b86987db9..bbacde8b768 100644
--- a/test/lld/em_asm.wast.out
+++ b/test/lld/em_asm.wast.out
@@ -261,7 +261,7 @@
     "__data_end" : "652"
   },
   "invokeFuncs": [
-  ]
+  ],
   "features": [
     "--mvp-features",
     "--enable-threads",
diff --git a/test/lld/em_asm_O0.wast.out b/test/lld/em_asm_O0.wast.out
index 10ce9e0dfeb..38074f72471 100644
--- a/test/lld/em_asm_O0.wast.out
+++ b/test/lld/em_asm_O0.wast.out
@@ -121,7 +121,7 @@
     "__data_end" : "652"
   },
   "invokeFuncs": [
-  ]
+  ],
   "features": [
     "--mvp-features",
     "--enable-threads",
diff --git a/test/lld/em_asm_table.wast.out b/test/lld/em_asm_table.wast.out
index bc2fb60f945..72002d34e3a 100644
--- a/test/lld/em_asm_table.wast.out
+++ b/test/lld/em_asm_table.wast.out
@@ -91,7 +91,7 @@
     "__data_end" : "1048"
   },
   "invokeFuncs": [
-  ]
+  ],
   "features": [
     "--mvp-features",
     "--enable-threads",
diff --git a/test/lld/em_js_O0.wast.out b/test/lld/em_js_O0.wast.out
index 85411c49582..26e4ce5afe1 100644
--- a/test/lld/em_js_O0.wast.out
+++ b/test/lld/em_js_O0.wast.out
@@ -71,7 +71,7 @@
     "__data_end" : "7232"
   },
   "invokeFuncs": [
-  ]
+  ],
   "features": [
     "--mvp-features",
     "--enable-threads",
diff --git a/test/lld/hello_world.wast.mem.out b/test/lld/hello_world.wast.mem.out
index c3826ecb9ac..133e66aa7d3 100644
--- a/test/lld/hello_world.wast.mem.out
+++ b/test/lld/hello_world.wast.mem.out
@@ -96,7 +96,7 @@
     "__data_end" : "581"
   },
   "invokeFuncs": [
-  ]
+  ],
   "features": [
     "--mvp-features",
     "--enable-threads",
diff --git a/test/lld/hello_world.wast.out b/test/lld/hello_world.wast.out
index 18a21e2eb32..f964276d9ec 100644
--- a/test/lld/hello_world.wast.out
+++ b/test/lld/hello_world.wast.out
@@ -97,7 +97,7 @@
     "__data_end" : "581"
   },
   "invokeFuncs": [
-  ]
+  ],
   "features": [
     "--mvp-features",
     "--enable-threads",
diff --git a/test/lld/init.wast.out b/test/lld/init.wast.out
index 9244da7189a..5f46bee3cca 100644
--- a/test/lld/init.wast.out
+++ b/test/lld/init.wast.out
@@ -108,7 +108,7 @@
     "__data_end" : "576"
   },
   "invokeFuncs": [
-  ]
+  ],
   "features": [
     "--mvp-features",
     "--enable-threads",
diff --git a/test/lld/recursive.wast.out b/test/lld/recursive.wast.out
index bce622b9388..8ac3105d47c 100644
--- a/test/lld/recursive.wast.out
+++ b/test/lld/recursive.wast.out
@@ -154,7 +154,7 @@
     "__data_end" : "587"
   },
   "invokeFuncs": [
-  ]
+  ],
   "features": [
     "--mvp-features",
     "--enable-threads",
diff --git a/test/lld/reserved_func_ptr.wast.out b/test/lld/reserved_func_ptr.wast.out
index e777b2af5e6..ee58ef846d8 100644
--- a/test/lld/reserved_func_ptr.wast.out
+++ b/test/lld/reserved_func_ptr.wast.out
@@ -191,7 +191,7 @@
     "__data_end" : "568"
   },
   "invokeFuncs": [
-  ]
+  ],
   "features": [
     "--mvp-features",
     "--enable-threads",
diff --git a/test/lld/shared.wast.out b/test/lld/shared.wast.out
index 2825913a328..597d7086dbd 100644
--- a/test/lld/shared.wast.out
+++ b/test/lld/shared.wast.out
@@ -71,7 +71,7 @@
   "namedGlobals": {
   },
   "invokeFuncs": [
-  ]
+  ],
   "features": [
     "--mvp-features",
     "--enable-threads",