diff --git a/media/libmedia/IMediaHTTPService.cpp b/media/libmedia/IMediaHTTPService.cpp
index 0c16a2b..062a07a 100644
--- a/media/libmedia/IMediaHTTPService.cpp
+++ b/media/libmedia/IMediaHTTPService.cpp
@@ -30,7 +30,7 @@
 };
 
 struct BpMediaHTTPService : public BpInterface<IMediaHTTPService> {
-    BpMediaHTTPService(const sp<IBinder> &impl)
+    explicit BpMediaHTTPService(const sp<IBinder> &impl)
         : BpInterface<IMediaHTTPService>(impl) {
     }