diff --git a/app/core/gimpsymmetry.h b/app/core/gimpsymmetry.h
index d695c768ae..bd1dcee615 100644
--- a/app/core/gimpsymmetry.h
+++ b/app/core/gimpsymmetry.h
@@ -25,8 +25,8 @@
 #include "gimpobject.h"
 
 
-/* shift one more than GIMP_CONFIG_PARAM_DONT_COMPARE */
-#define GIMP_SYMMETRY_PARAM_GUI (1 << (7 + G_PARAM_USER_SHIFT))
+/* shift one more than latest GIMP_CONFIG_PARAM_* */
+#define GIMP_SYMMETRY_PARAM_GUI (1 << (0 + GIMP_CONFIG_PARAM_FLAG_SHIFT))
 
 
 #define GIMP_TYPE_SYMMETRY            (gimp_symmetry_get_type ())
diff --git a/app/widgets/gimpsymmetryeditor.c b/app/widgets/gimpsymmetryeditor.c
index 4897667e0a..b6c05c172c 100644
--- a/app/widgets/gimpsymmetryeditor.c
+++ b/app/widgets/gimpsymmetryeditor.c
@@ -23,6 +23,7 @@
 #include <gegl.h>
 #include <gtk/gtk.h>
 
+#include "libgimpconfig/gimpconfig.h"
 #include "libgimpwidgets/gimpwidgets.h"
 
 #include "propgui/propgui-types.h" /* ugly, but what the heck */
diff --git a/libgimpbase/gimpparamspecs.h b/libgimpbase/gimpparamspecs.h
index da6a357563..b00064fd15 100644
--- a/libgimpbase/gimpparamspecs.h
+++ b/libgimpbase/gimpparamspecs.h
@@ -35,10 +35,15 @@ G_BEGIN_DECLS
  *
  * Since 3.0
  */
-/*
- * Keep in sync with libgimpconfig/gimpconfig-params.h
+#define GIMP_PARAM_NO_VALIDATE    (1 << (0 + G_PARAM_USER_SHIFT))
+
+/**
+ * GIMP_PARAM_FLAG_SHIFT:
+ *
+ * Minimum shift count to be used for libgimpconfig defined
+ * [flags@GObject.ParamFlags] (see libgimpconfig/gimpconfig-params.h).
  */
-#define GIMP_PARAM_NO_VALIDATE (1 << (6 + G_PARAM_USER_SHIFT))
+#define GIMP_PARAM_FLAG_SHIFT     (1 + G_PARAM_USER_SHIFT)
 
 /**
  * GIMP_PARAM_STATIC_STRINGS:
diff --git a/libgimpconfig/gimpconfig-params.h b/libgimpconfig/gimpconfig-params.h
index 516baf8639..a11175d769 100644
--- a/libgimpconfig/gimpconfig-params.h
+++ b/libgimpconfig/gimpconfig-params.h
@@ -37,21 +37,21 @@ G_BEGIN_DECLS
  *
  * A property that can and should be serialized and deserialized.
  **/
-#define GIMP_CONFIG_PARAM_SERIALIZE    (1 << (0 + G_PARAM_USER_SHIFT))
+#define GIMP_CONFIG_PARAM_SERIALIZE    (1 << (0 + GIMP_PARAM_FLAG_SHIFT))
 
 /**
  * GIMP_CONFIG_PARAM_AGGREGATE:
  *
  * The object property is to be treated as part of the parent object.
  **/
-#define GIMP_CONFIG_PARAM_AGGREGATE    (1 << (1 + G_PARAM_USER_SHIFT))
+#define GIMP_CONFIG_PARAM_AGGREGATE    (1 << (1 + GIMP_PARAM_FLAG_SHIFT))
 
 /**
  * GIMP_CONFIG_PARAM_RESTART:
  *
  * Changes to this property take effect only after a restart.
  **/
-#define GIMP_CONFIG_PARAM_RESTART      (1 << (2 + G_PARAM_USER_SHIFT))
+#define GIMP_CONFIG_PARAM_RESTART      (1 << (2 + GIMP_PARAM_FLAG_SHIFT))
 
 /**
  * GIMP_CONFIG_PARAM_CONFIRM:
@@ -59,14 +59,14 @@ G_BEGIN_DECLS
  * Changes to this property should be confirmed by the user before
  * being applied.
  **/
-#define GIMP_CONFIG_PARAM_CONFIRM      (1 << (3 + G_PARAM_USER_SHIFT))
+#define GIMP_CONFIG_PARAM_CONFIRM      (1 << (3 + GIMP_PARAM_FLAG_SHIFT))
 
 /**
  * GIMP_CONFIG_PARAM_DEFAULTS:
  *
  * Don't serialize this property if it has the default value.
  **/
-#define GIMP_CONFIG_PARAM_DEFAULTS     (1 << (4 + G_PARAM_USER_SHIFT))
+#define GIMP_CONFIG_PARAM_DEFAULTS     (1 << (4 + GIMP_PARAM_FLAG_SHIFT))
 
 /**
  * GIMP_CONFIG_PARAM_IGNORE:
@@ -74,14 +74,22 @@ G_BEGIN_DECLS
  * This property exists for obscure reasons or is needed for backward
  * compatibility. Ignore the value read and don't serialize it.
  **/
-#define GIMP_CONFIG_PARAM_IGNORE       (1 << (5 + G_PARAM_USER_SHIFT))
+#define GIMP_CONFIG_PARAM_IGNORE       (1 << (5 + GIMP_PARAM_FLAG_SHIFT))
 
 /**
  * GIMP_CONFIG_PARAM_DONT_COMPARE:
  *
  * Ignore this property when comparing objects.
  **/
-#define GIMP_CONFIG_PARAM_DONT_COMPARE (1 << (6 + G_PARAM_USER_SHIFT))
+#define GIMP_CONFIG_PARAM_DONT_COMPARE (1 << (6 + GIMP_PARAM_FLAG_SHIFT))
+
+/**
+ * GIMP_CONFIG_PARAM_FLAG_SHIFT:
+ *
+ * Minimum shift count to be used for core application defined
+ * [flags@GObject.ParamFlags].
+ */
+#define GIMP_CONFIG_PARAM_FLAG_SHIFT   (7 + GIMP_PARAM_FLAG_SHIFT)
 
 /**
  * GIMP_CONFIG_PARAM_FLAGS:
diff --git a/libgimpconfig/gimpconfig.h b/libgimpconfig/gimpconfig.h
index 829ab5b4b4..43cbf37ddb 100644
--- a/libgimpconfig/gimpconfig.h
+++ b/libgimpconfig/gimpconfig.h
@@ -21,6 +21,8 @@
 
 #include <gegl.h>
 
+#include <libgimpbase/gimpbase.h>
+
 #define __GIMP_CONFIG_H_INSIDE__
 
 #include <libgimpconfig/gimpconfigtypes.h>