diff --git a/src/apis/emscripten/mod.rs b/src/apis/emscripten/mod.rs
index e83ab928f..dfa84056f 100644
--- a/src/apis/emscripten/mod.rs
+++ b/src/apis/emscripten/mod.rs
@@ -329,6 +329,11 @@ pub fn generate_emscripten_env<'a, 'b>() -> ImportObject<&'a str, &'b str> {
         "_time",
         ImportValue::Func(time::_time as _),
     );
+    import_object.set(
+        "env",
+        "_strftime",
+        ImportValue::Func(time::_strftime as _),
+    );
     import_object.set(
         "env",
         "_localtime_r",
@@ -345,7 +350,7 @@ pub fn generate_emscripten_env<'a, 'b>() -> ImportObject<&'a str, &'b str> {
     mock_external!(import_object, _usleep);
     // mock_external!(import_object, _time);
     mock_external!(import_object, _sysconf);
-    mock_external!(import_object, _strftime);
+    // mock_external!(import_object, _strftime);
     mock_external!(import_object, _sigsuspend);
     mock_external!(import_object, _sigprocmask);
     mock_external!(import_object, _sigemptyset);
diff --git a/src/apis/emscripten/time.rs b/src/apis/emscripten/time.rs
index 58495f5cb..634d77b83 100644
--- a/src/apis/emscripten/time.rs
+++ b/src/apis/emscripten/time.rs
@@ -82,3 +82,9 @@ pub extern "C" fn _time(time_p: u32, instance: &mut Instance) -> time_t {
         time(time_p_addr)
     }
 }
+
+/// emscripten: _strftime
+pub extern "C" fn _strftime(s_ptr: c_int, maxsize: u32, format_ptr: c_int, tm_ptr: c_int, instance: &mut Instance) -> time_t {
+    debug!("emscripten::_strftime {} {} {} {}", s_ptr, maxsize, format_ptr, tm_ptr);
+    0
+}