1 files changed, 5 insertions, 0 deletions
diff --git a/main.go b/main.go
index db41eab..a4f6d46 100644
--- a/main.go
+++ b/main.go
@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"log"
 	"net/url"
+	"os"
 	"runtime/pprof"
 	"strings"
 	"time"
@@ -15,6 +16,10 @@ import (
 )
 
 func main() {
+	if os.Getenv("GOEXPERIMENT") != "goroutineleakprofile" {
+		log.Fatal("Missing GOEXPERIMENT=goroutineleakprofile environment setting")
+	}
+
 	// Setting shorfile helps especially for when we log errors
 	// without returning them.
 	log.SetFlags(log.LstdFlags | log.Lshortfile)