diff --git a/go/ssa/testmain.go b/go/ssa/testmain.go
index 4bf8d98..c4256d1 100644
--- a/go/ssa/testmain.go
+++ b/go/ssa/testmain.go
@@ -222,6 +222,7 @@
 
 func (deps) ImportPath() string { return "" }
 func (deps) MatchString(pat, str string) (bool, error) { return true, nil }
+func (deps) SetPanicOnExit0(bool) {}
 func (deps) StartCPUProfile(io.Writer) error { return nil }
 func (deps) StartTestLog(io.Writer) {}
 func (deps) StopCPUProfile() {}