diff --git a/app/core/gimp-user-install.c b/app/core/gimp-user-install.c
index a6272a69e7..d4d1b98d37 100644
--- a/app/core/gimp-user-install.c
+++ b/app/core/gimp-user-install.c
@@ -1073,9 +1073,10 @@ user_update_tool_presets (const GMatchInfo *matched_value,
  * well as "toolrc" (but this one is skipped anyway).
  */
 #define CONTEXTRC_UPDATE_PATTERN \
-  "gimp-blend-tool"           "|" \
-  "dynamics \"Dynamics Off\"" "|" \
-  "\\(dynamics-expanded yes\\)"
+  "gimp-blend-tool"             "|" \
+  "dynamics \"Dynamics Off\""   "|" \
+  "\\(dynamics-expanded yes\\)" "|" \
+  "\\(color-options-expanded [^)]*\\)"
 
 static gboolean
 user_update_contextrc_over20 (const GMatchInfo *matched_value,
@@ -1096,6 +1097,10 @@ user_update_contextrc_over20 (const GMatchInfo *matched_value,
     {
       /* This option just doesn't exist anymore. */
     }
+  else if (g_str_has_prefix (match, "(color-options-expanded "))
+    {
+      /* This option was removed with the gamma-hack. Cf. #12577. */
+    }
   else
     {
       g_message ("(WARNING) %s: invalid match \"%s\"", G_STRFUNC, match);
diff --git a/app/tools/gimpfilteroptions.c b/app/tools/gimpfilteroptions.c
index 8f74366586..acf37e938e 100644
--- a/app/tools/gimpfilteroptions.c
+++ b/app/tools/gimpfilteroptions.c
@@ -39,7 +39,6 @@ enum
   PROP_PREVIEW_SPLIT_POSITION,
   PROP_CONTROLLER,
   PROP_BLENDING_OPTIONS_EXPANDED,
-  PROP_COLOR_OPTIONS_EXPANDED,
   PROP_MERGE_FILTER
 };
 
@@ -111,12 +110,6 @@ gimp_filter_options_class_init (GimpFilterOptionsClass *klass)
                             FALSE,
                             GIMP_PARAM_STATIC_STRINGS);
 
-  GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_COLOR_OPTIONS_EXPANDED,
-                            "color-options-expanded",
-                            NULL, NULL,
-                            FALSE,
-                            GIMP_PARAM_STATIC_STRINGS);
-
   GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_MERGE_FILTER,
                             "merge-filter",
                             _("_Merge filter"),
@@ -165,10 +158,6 @@ gimp_filter_options_set_property (GObject      *object,
       options->blending_options_expanded = g_value_get_boolean (value);
       break;
 
-    case PROP_COLOR_OPTIONS_EXPANDED:
-      options->color_options_expanded = g_value_get_boolean (value);
-      break;
-
     case PROP_MERGE_FILTER:
       options->merge_filter = g_value_get_boolean (value);
       break;
@@ -213,10 +202,6 @@ gimp_filter_options_get_property (GObject    *object,
       g_value_set_boolean (value, options->blending_options_expanded);
       break;
 
-    case PROP_COLOR_OPTIONS_EXPANDED:
-      g_value_set_boolean (value, options->color_options_expanded);
-      break;
-
     case PROP_MERGE_FILTER:
       g_value_set_boolean (value, options->merge_filter);
       break;
diff --git a/app/tools/gimpfilteroptions.h b/app/tools/gimpfilteroptions.h
index 1fb39b19a5..b41a677dff 100644
--- a/app/tools/gimpfilteroptions.h
+++ b/app/tools/gimpfilteroptions.h
@@ -43,7 +43,6 @@ struct _GimpFilterOptions
   gboolean           controller;
 
   gboolean           blending_options_expanded;
-  gboolean           color_options_expanded;
 
   gboolean           merge_filter;
 };