diff --git a/Makefile b/Makefile
index 885933e6e..c149419c4 100644
--- a/Makefile
+++ b/Makefile
@@ -4,6 +4,12 @@ all:
 full:
 	go install --tags=with_sqlite ./pkg/... ./server/... ./cmd/... ./third_party/...
 
+# Workaround Go bug where the $GOPATH/pkg cache doesn't know about tag changes.
+# Useful when you accidentally run "make" and then "make presubmit" doesn't work.
+# See https://code.google.com/p/go/issues/detail?id=4443
+forcefull:
+	go install -a --tags=with_sqlite ./pkg/... ./server/... ./cmd/... ./third_party/...
+
 presubmitlite:
 	SKIP_DEP_TESTS=1 go test -short ./pkg/... ./server/camlistored ./cmd/... && echo PASS