diff --git a/Makefile b/Makefile
index 17b7d982274..d60bf0de844 100644
--- a/Makefile
+++ b/Makefile
@@ -136,7 +136,7 @@ build/testdb/go.dbscheme: upgrades/initial/go.dbscheme
 
 .PHONY: sync-dataflow-libraries
 sync-dataflow-libraries:
-	for f in DataFlowImpl.qll DataFlowImpl2.qll DataFlowImplCommon.qll tainttracking1/TaintTrackingImpl.qll tainttracking2/TaintTrackingImpl.qll;\
+	for f in DataFlowImpl.qll DataFlowImpl2.qll DataFlowImplCommon.qll tainttracking1/TaintTrackingImpl.qll tainttracking2/TaintTrackingImpl.qll FlowSummaryImpl.qll;\
 	do\
 		curl -s -o ./ql/src/semmle/go/dataflow/internal/$$f https://raw.githubusercontent.com/github/codeql/$(DATAFLOW_BRANCH)/java/ql/lib/semmle/code/java/dataflow/internal/$$f;\
 	done