diff --git a/src/corelib/serialization/qcborarray.h b/src/corelib/serialization/qcborarray.h
index 98f409958a..4e9f7cf9b5 100644
--- a/src/corelib/serialization/qcborarray.h
+++ b/src/corelib/serialization/qcborarray.h
@@ -207,7 +207,7 @@ public:
     bool contains(const QCborValue &value) const;
 
     int compare(const QCborArray &other) const noexcept Q_DECL_PURE_FUNCTION;
-#if QT_HAS_INCLUDE(<compare>)
+#if 0 && QT_HAS_INCLUDE(<compare>)
     std::strong_ordering operator<=>(const QCborArray &other) const
     {
         int c = compare(other);
diff --git a/src/corelib/serialization/qcbormap.h b/src/corelib/serialization/qcbormap.h
index 02c2ec086d..2e9422cf94 100644
--- a/src/corelib/serialization/qcbormap.h
+++ b/src/corelib/serialization/qcbormap.h
@@ -233,7 +233,7 @@ public:
     { const_iterator it = find(key); return it != end(); }
 
     int compare(const QCborMap &other) const noexcept Q_DECL_PURE_FUNCTION;
-#if QT_HAS_INCLUDE(<compare>)
+#if 0 && QT_HAS_INCLUDE(<compare>)
     std::strong_ordering operator<=>(const QCborMap &other) const
     {
         int c = compare(other);
diff --git a/src/corelib/serialization/qcborvalue.h b/src/corelib/serialization/qcborvalue.h
index d44c7fbae7..f0bfa23392 100644
--- a/src/corelib/serialization/qcborvalue.h
+++ b/src/corelib/serialization/qcborvalue.h
@@ -57,7 +57,7 @@
 #  undef False
 #endif
 
-#if QT_HAS_INCLUDE(<compare>)
+#if 0 && QT_HAS_INCLUDE(<compare>)
 #  include <compare>
 #endif
 
@@ -252,7 +252,7 @@ public:
     const QCborValue operator[](qint64 key) const;
 
     int compare(const QCborValue &other) const;
-#if QT_HAS_INCLUDE(<compare>)
+#if 0 && QT_HAS_INCLUDE(<compare>)
     std::strong_ordering operator<=>(const QCborValue &other) const
     {
         int c = compare(other);
@@ -398,7 +398,7 @@ public:
 
     int compare(const QCborValue &other) const
     { return concrete().compare(other); }
-#if QT_HAS_INCLUDE(<compare>)
+#if 0 && QT_HAS_INCLUDE(<compare>)
     std::strong_ordering operator<=>(const QCborValue &other) const
     {
         int c = compare(other);