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-rw-r--r--src/lib/hash/blake2/blake2b.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/lib/hash/blake2/blake2b.h b/src/lib/hash/blake2/blake2b.h
index efe0d34f4..290db10f0 100644
--- a/src/lib/hash/blake2/blake2b.h
+++ b/src/lib/hash/blake2/blake2b.h
@@ -29,7 +29,7 @@ class BOTAN_DLL Blake2b final : public HashFunction
/**
* @param output_bits the output size of Blake2b in bits
*/
- Blake2b(size_t output_bits = 512);
+ explicit Blake2b(size_t output_bits = 512);
size_t hash_block_size() const override { return BLAKE2B_BLOCKBYTES; }
size_t output_length() const override { return m_output_bits / 8; }