diff --git a/cmd/callgraph/main.go b/cmd/callgraph/main.go
index 9342870b..57ad2dd7 100644
--- a/cmd/callgraph/main.go
+++ b/cmd/callgraph/main.go
@@ -31,9 +31,9 @@ import (
 	"text/template"
 
 	"golang.org/x/tools/go/callgraph"
+	"golang.org/x/tools/go/callgraph/rta"
 	"golang.org/x/tools/go/loader"
 	"golang.org/x/tools/go/pointer"
-	"golang.org/x/tools/go/rta"
 	"golang.org/x/tools/go/ssa"
 )
 
diff --git a/go/rta/rta.go b/go/callgraph/rta/rta.go
similarity index 100%
rename from go/rta/rta.go
rename to go/callgraph/rta/rta.go
diff --git a/go/rta/rta_test.go b/go/callgraph/rta/rta_test.go
similarity index 98%
rename from go/rta/rta_test.go
rename to go/callgraph/rta/rta_test.go
index 5057746a..03e16b0a 100644
--- a/go/rta/rta_test.go
+++ b/go/callgraph/rta/rta_test.go
@@ -16,8 +16,8 @@ import (
 	"testing"
 
 	"golang.org/x/tools/go/callgraph"
+	"golang.org/x/tools/go/callgraph/rta"
 	"golang.org/x/tools/go/loader"
-	"golang.org/x/tools/go/rta"
 	"golang.org/x/tools/go/ssa"
 	"golang.org/x/tools/go/types"
 )
diff --git a/go/rta/testdata/func.go b/go/callgraph/rta/testdata/func.go
similarity index 100%
rename from go/rta/testdata/func.go
rename to go/callgraph/rta/testdata/func.go
diff --git a/go/rta/testdata/iface.go b/go/callgraph/rta/testdata/iface.go
similarity index 100%
rename from go/rta/testdata/iface.go
rename to go/callgraph/rta/testdata/iface.go
diff --git a/go/rta/testdata/rtype.go b/go/callgraph/rta/testdata/rtype.go
similarity index 100%
rename from go/rta/testdata/rtype.go
rename to go/callgraph/rta/testdata/rtype.go