diff --git a/amalgamation.sh b/amalgamation.sh
index 1a030518b..86293c556 100755
--- a/amalgamation.sh
+++ b/amalgamation.sh
@@ -13,6 +13,7 @@ AMAL_C="simdjson.cpp"
 
 # order does not matter
 ALLCFILES="
+$SCRIPTPATH/src/simdjson.cpp
 $SCRIPTPATH/src/jsonioutil.cpp
 $SCRIPTPATH/src/jsonminifier.cpp
 $SCRIPTPATH/src/jsonparser.cpp