diff --git a/samples/Cpp/HelloCpp/proj.emscripten/Makefile b/samples/Cpp/HelloCpp/proj.emscripten/Makefile
index 0442fc6f63..a5587a422d 100644
--- a/samples/Cpp/HelloCpp/proj.emscripten/Makefile
+++ b/samples/Cpp/HelloCpp/proj.emscripten/Makefile
@@ -1,4 +1,4 @@
-EXECUTABLE = HelloCpp
+EXECUTABLE = HelloCpp.html
 
 INCLUDES = -I.. -I../Classes