diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -87,7 +87,7 @@
     GROUP_BASE_NAME KF
     VERSION ${KF5_VERSION}
     DEPRECATED_BASE_VERSION 0
-    DEPRECATION_VERSIONS 5.0 5.15 5.61 5.63 5.66
+    DEPRECATION_VERSIONS 5.0 5.15 5.61 5.63 5.66 5.67
     EXCLUDE_DEPRECATED_BEFORE_AND_AT ${EXCLUDE_DEPRECATED_BEFORE_AND_AT}
 )
 set(kservice_includes
diff --git a/src/services/kservice.h b/src/services/kservice.h
--- a/src/services/kservice.h
+++ b/src/services/kservice.h
@@ -275,6 +275,7 @@
      */
     bool hasMimeType(const QString &mimeType) const;
 
+#if KSERVICE_ENABLE_DEPRECATED_SINCE(5, 67)
     /**
      * Set to true if it is allowed to use this service as the default (main)
      * action for the files it supports (e.g. Left Click in a file manager, or KRun in general).
@@ -284,8 +285,11 @@
      * Note that servicemenus supersede this functionality though, at least in konqueror.
      *
      * @return true if the service may be used as the default (main) handler
+     * @deprecated since 5.67 due to no known use case
      */
+    KSERVICE_DEPRECATED_VERSION(5, 67, "No known use case")
     bool allowAsDefault() const;
+#endif
 
     /**
      * Returns the actions defined in this desktop file
diff --git a/src/services/kservice.cpp b/src/services/kservice.cpp
--- a/src/services/kservice.cpp
+++ b/src/services/kservice.cpp
@@ -979,11 +979,13 @@
     return ret;
 }
 
+#if KSERVICE_BUILD_DEPRECATED_SINCE(5, 67)
 bool KService::allowAsDefault() const
 {
     Q_D(const KService);
     return d->m_bAllowAsDefault;
 }
+#endif
 
 int KService::initialPreference() const
 {
diff --git a/src/services/kserviceoffer.h b/src/services/kserviceoffer.h
--- a/src/services/kserviceoffer.h
+++ b/src/services/kserviceoffer.h
@@ -77,12 +77,16 @@
      */
     KServiceOffer &operator=(const KServiceOffer &other);
 
+#if KSERVICE_ENABLE_DEPRECATED_SINCE(5, 67)
     /**
      * Is it allowed to use this service for default actions
      * (e.g. Left Click in a file manager, or KRun in general).
      * @return true if the service is a allowed as default
+     * @deprecated since 5.67, no know use case.
      */
+    KSERVICE_DEPRECATED_VERSION(5, 67, "No known use case")
     bool allowAsDefault() const;
+#endif
 
     /**
      * The bigger this number is, the better is this service.
diff --git a/src/services/kserviceoffer.cpp b/src/services/kserviceoffer.cpp
--- a/src/services/kserviceoffer.cpp
+++ b/src/services/kserviceoffer.cpp
@@ -95,10 +95,12 @@
     return _o.d->preference < d->preference;
 }
 
+#if KSERVICE_BUILD_DEPRECATED_SINCE(5, 67)
 bool KServiceOffer::allowAsDefault() const
 {
     return d->bAllowAsDefault;
 }
+#endif
 
 int KServiceOffer::preference() const
 {