diff --git a/src/Tag.cc b/src/Tag.cc
index 8f896096f9..6233799585 100644
--- a/src/Tag.cc
+++ b/src/Tag.cc
@@ -37,6 +37,13 @@ Tag::Tag(const Tag& other) {
     etype = other.etype;
 }
 
+Tag::Tag(Tag&& other) noexcept {
+    type = other.type;
+    subtype = other.subtype;
+    val = std::move(other.val);
+    etype = std::move(other.etype);
+}
+
 Tag::Tag() {
     val = nullptr;
     etype = nullptr;
diff --git a/src/Tag.h b/src/Tag.h
index b7239a791e..2d730ba87b 100644
--- a/src/Tag.h
+++ b/src/Tag.h
@@ -100,6 +100,11 @@ public:
      */
     Tag(const Tag& other);
 
+    /**
+     * Move constructor.
+     */
+    Tag(Tag&& other) noexcept;
+
     /**
      * Destructor.
      */