1 files changed, 1 insertions, 1 deletions
diff --git a/ext/wasm/c-pp.c b/ext/wasm/c-pp.c
index 6815cb845..c67881dd3 100644
--- a/ext/wasm/c-pp.c
+++ b/ext/wasm/c-pp.c
@@ -1508,7 +1508,7 @@ int main(int argc, char const * const * argv){
     }
     ISFLAG("debug"){
       ++g.doDebug;
-    }else if(!zInfile){
+    }else if(!zInfile && '-'!=argv[i][0]){
       goto do_infile;
     }else{
       fatal("Unhandled flag: %s", argv[i]);