diff --git a/Makefile.emscripten b/Makefile.emscripten
index 1cfcb6b..9c7a2e2 100644
--- a/Makefile.emscripten
+++ b/Makefile.emscripten
@@ -19,7 +19,7 @@ EMFLAGS += -s TOTAL_MEMORY=83886080
 EMFLAGS += -s NO_EXIT_RUNTIME=1
 
 WASMFLAGS := -s WASM=1 -s "BINARYEN_TRAP_MODE='allow'"
-ASMJSFLAGS :=
+ASMJSFLAGS := -s WASM=0
 
 CXX = em++