1 files changed, 1 insertions, 1 deletions

diff --git a/xdelta3/testing/random.h b/xdelta3/testing/random.h
index d1a6840..8ff64db 100644
--- a/xdelta3/testing/random.h
+++ b/xdelta3/testing/random.h
@@ -21,7 +21,7 @@ class MTRandom {
     Init(TEST_SEED1);
   }
 
-  MTRandom(uint32_t seed) {
+  explicit MTRandom(uint32_t seed) {
     Init(seed);
   }