1 files changed, 2 insertions, 2 deletions
diff --git a/src/wasm/wasm-io.cpp b/src/wasm/wasm-io.cpp
index b8d67f4d5..b94fc8470 100644
--- a/src/wasm/wasm-io.cpp
+++ b/src/wasm/wasm-io.cpp
@@ -88,8 +88,8 @@ bool ModuleReader::isBinaryFile(std::string filename) {
 void ModuleReader::read(std::string filename,
                         Module& wasm,
                         std::string sourceMapFilename) {
-  // empty filename means read from stdin
-  if (!filename.size()) {
+  // empty filename or "-" means read from stdin
+  if (!filename.size() || filename == "-") {
     readStdin(wasm, sourceMapFilename);
     return;
   }