1 files changed, 1 insertions, 1 deletions
diff --git a/src/lib/base/init.h b/src/lib/base/init.h
index 0c61eba6f..7709883af 100644
--- a/src/lib/base/init.h
+++ b/src/lib/base/init.h
@@ -22,7 +22,7 @@ namespace Botan {
 class BOTAN_DLL LibraryInitializer
    {
    public:
-      LibraryInitializer(const std::string& s = "") { initialize(s); }
+      explicit LibraryInitializer(const std::string& s = "") { initialize(s); }
       ~LibraryInitializer() { deinitialize(); }
 
       static void initialize(const std::string& = "");