diff --git a/store/test/main_test.go b/store/test/main_test.go
index ad6bb80ca..5c4e19274 100644
--- a/store/test/main_test.go
+++ b/store/test/main_test.go
@@ -38,7 +38,7 @@ func runAllDrivers() {
 		// strictly speaking we should probably fail, but let's be robust.
 		// Actually, if build fails, tests relying on it will fail or try to rebuild.
 		// Let's exit to be clear.
-		os.Exit(1)
+		panic(fmt.Sprintf("failed to build docker image: %v", err))
 	}
 
 	var failed []string