diff --git a/src/grpc/qgrpccalloptions.cpp b/src/grpc/qgrpccalloptions.cpp
index 4d5c7975..6640a3cb 100644
--- a/src/grpc/qgrpccalloptions.cpp
+++ b/src/grpc/qgrpccalloptions.cpp
@@ -262,13 +262,13 @@ QGrpcCallOptions::setMetadata(std::initializer_list<std::pair<QByteArray, QByteA
     \include qgrpccalloptions.cpp merge-md-note
     \l{QGrpcChannelOptions::addMetadata()}
 */
-QGrpcCallOptions &QGrpcCallOptions::addMetadata(QByteArray key, QByteArray value)
+QGrpcCallOptions &QGrpcCallOptions::addMetadata(QByteArrayView key, QByteArrayView value)
 {
-    if (d_ptr->metadata(QtGrpc::MultiValue).contains(key, value))
+    if (d_ptr->containsMetadata(key, value))
         return *this;
     d_ptr.detach();
     Q_D(QGrpcCallOptions);
-    d->addMetadata(std::move(key), std::move(value));
+    d->addMetadata(key.toByteArray(), value.toByteArray());
     return *this;
 }
 
diff --git a/src/grpc/qgrpccalloptions.h b/src/grpc/qgrpccalloptions.h
index 7dc072c6..61222fc1 100644
--- a/src/grpc/qgrpccalloptions.h
+++ b/src/grpc/qgrpccalloptions.h
@@ -62,7 +62,7 @@ public:
     Q_GRPC_EXPORT QGrpcCallOptions &setMetadata(QMultiHash<QByteArray, QByteArray> &&metadata);
     Q_GRPC_EXPORT QGrpcCallOptions &
     setMetadata(std::initializer_list<std::pair<QByteArray, QByteArray>> list);
-    Q_GRPC_EXPORT QGrpcCallOptions &addMetadata(QByteArray key, QByteArray value);
+    Q_GRPC_EXPORT QGrpcCallOptions &addMetadata(QByteArrayView key, QByteArrayView value);
 
 private:
     QExplicitlySharedDataPointer<QGrpcCallOptionsPrivate> d_ptr;
diff --git a/src/grpc/qgrpcchanneloptions.cpp b/src/grpc/qgrpcchanneloptions.cpp
index 79c5592c..e29f5ca7 100644
--- a/src/grpc/qgrpcchanneloptions.cpp
+++ b/src/grpc/qgrpcchanneloptions.cpp
@@ -271,13 +271,13 @@ QGrpcChannelOptions::setMetadata(std::initializer_list<std::pair<QByteArray, QBy
     \include qgrpcchanneloptions.cpp merge-md-note
     \l{QGrpcCallOptions::addMetadata()}
 */
-QGrpcChannelOptions &QGrpcChannelOptions::addMetadata(QByteArray key, QByteArray value)
+QGrpcChannelOptions &QGrpcChannelOptions::addMetadata(QByteArrayView key, QByteArrayView value)
 {
-    if (d_ptr->metadata(QtGrpc::MultiValue).contains(key, value))
+    if (d_ptr->containsMetadata(key, value))
         return *this;
     d_ptr.detach();
     Q_D(QGrpcChannelOptions);
-    d->addMetadata(std::move(key), std::move(value));
+    d->addMetadata(key.toByteArray(), value.toByteArray());
     return *this;
 }
 
diff --git a/src/grpc/qgrpcchanneloptions.h b/src/grpc/qgrpcchanneloptions.h
index 459345b0..c69d9ce6 100644
--- a/src/grpc/qgrpcchanneloptions.h
+++ b/src/grpc/qgrpcchanneloptions.h
@@ -68,7 +68,7 @@ public:
     Q_GRPC_EXPORT QGrpcChannelOptions &setMetadata(QMultiHash<QByteArray, QByteArray> &&metadata);
     Q_GRPC_EXPORT QGrpcChannelOptions &
     setMetadata(std::initializer_list<std::pair<QByteArray, QByteArray>> list);
-    Q_GRPC_EXPORT QGrpcChannelOptions &addMetadata(QByteArray key, QByteArray value);
+    Q_GRPC_EXPORT QGrpcChannelOptions &addMetadata(QByteArrayView key, QByteArrayView value);
 
     [[nodiscard]] Q_GRPC_EXPORT QGrpcSerializationFormat serializationFormat() const;
     Q_GRPC_EXPORT QGrpcChannelOptions &
diff --git a/src/grpc/qgrpccommonoptions.cpp b/src/grpc/qgrpccommonoptions.cpp
index 1694390c..2d75e20e 100644
--- a/src/grpc/qgrpccommonoptions.cpp
+++ b/src/grpc/qgrpccommonoptions.cpp
@@ -165,4 +165,11 @@ void QGrpcCommonOptions::addMetadata(QByteArray &&key, QByteArray &&value)
     m_metadataMulti.emplace(std::move(key), std::move(value));
 }
 
+bool QGrpcCommonOptions::containsMetadata(QByteArrayView key, QByteArrayView value) const
+{
+    const auto &md = metadata(QtGrpc::MultiValue);
+    auto [f, l] = md.equal_range(key);
+    return std::find(f, l, value) != l;
+}
+
 QT_END_NAMESPACE
diff --git a/src/grpc/qgrpccommonoptions_p.h b/src/grpc/qgrpccommonoptions_p.h
index b53c3f92..ff91aff3 100644
--- a/src/grpc/qgrpccommonoptions_p.h
+++ b/src/grpc/qgrpccommonoptions_p.h
@@ -47,6 +47,7 @@ public:
     void setMetadata(const QMultiHash<QByteArray, QByteArray> &md);
     void setMetadata(QMultiHash<QByteArray, QByteArray> &&md);
     void addMetadata(QByteArray &&key, QByteArray &&value);
+    bool containsMetadata(QByteArrayView key, QByteArrayView value) const;
 
 private:
     std::optional<std::chrono::milliseconds> m_timeout;
diff --git a/tests/auto/grpc/shared/grpccommonoptions.h b/tests/auto/grpc/shared/grpccommonoptions.h
index beac6b56..de176246 100644
--- a/tests/auto/grpc/shared/grpccommonoptions.h
+++ b/tests/auto/grpc/shared/grpccommonoptions.h
@@ -216,6 +216,10 @@ QT_WARNING_POP
         auto o5Detach = o5;
         QByteArray k = "keyB", v = "valB";
         o5.addMetadata(k, v);
+        // Check that exact key-value pairs are discarded no matter the order.
+        o5.addMetadata("keyA", "valA1");
+        o5.addMetadata("keyA", "valA2");
+        o5.addMetadata("keyB", "valB");
         QCOMPARE_EQ(o5.metadata(QtGrpc::MultiValue), data);
         QCOMPARE_NE(o5.metadata(QtGrpc::MultiValue), o5Detach.metadata(QtGrpc::MultiValue));
     }