1 files changed, 1 insertions, 2 deletions
diff --git a/src/lib/modes/cipher_mode.h b/src/lib/modes/cipher_mode.h
index fa4c0aa8d..e98f014b7 100644
--- a/src/lib/modes/cipher_mode.h
+++ b/src/lib/modes/cipher_mode.h
@@ -169,9 +169,8 @@ class BOTAN_DLL Cipher_Mode
       /**
       * @return provider information about this implementation. Default is "base",
       * might also return "sse2", "avx2", "openssl", or some other arbitrary string.
-      * The return value is guaranteed to point to a string literal constant.
       */
-      virtual const char* provider() const { return "base"; }
+      virtual std::string provider() const { return "base"; }
 
    private:
       virtual void key_schedule(const byte key[], size_t length) = 0;