diff --git a/.travis.yml b/.travis.yml
index 40712a99..8628d15e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -18,6 +18,7 @@ script:
    - make
    - make test 
    - make everything
+   - make amalgamate
    - make clean
    - make SANITIZEGOLD=1 test
    - make clean
diff --git a/Makefile b/Makefile
index cb1350b5..cb18f7a4 100644
--- a/Makefile
+++ b/Makefile
@@ -112,7 +112,7 @@ quiettest: jsoncheck numberparsingcheck stringparsingcheck basictests allparsers
 
 amalgamate:
 	./amalgamation.sh
-
+	$(CXX) $(CXXFLAGS) -o singleheader/demo  ./singleheader/amalgamation_demo.cpp   -Isingleheader   
 
 submodules: 
 	-git submodule update --init --recursive
diff --git a/amalgamation.sh b/amalgamation.sh
index 2266c061..035ce01b 100755
--- a/amalgamation.sh
+++ b/amalgamation.sh
@@ -42,6 +42,7 @@ $SCRIPTPATH/include/simdjson/jsonminifier.h
 $SCRIPTPATH/include/simdjson/parsedjson.h
 $SCRIPTPATH/include/simdjson/stage1_find_marks.h
 $SCRIPTPATH/include/simdjson/stage1_find_marks_flatten.h
+$SCRIPTPATH/include/simdjson/stage1_find_marks_flatten_haswell.h
 $SCRIPTPATH/include/simdjson/stage1_find_marks_macros.h
 $SCRIPTPATH/include/simdjson/stage1_find_marks_westmere.h
 $SCRIPTPATH/include/simdjson/stage1_find_marks_haswell.h