diff --git a/gtk2_ardour/ardour3_ui_dark.rc.in b/gtk2_ardour/ardour3_ui_dark.rc.in
index 3af061c9ce..0658655e35 100644
--- a/gtk2_ardour/ardour3_ui_dark.rc.in
+++ b/gtk2_ardour/ardour3_ui_dark.rc.in
@@ -1834,3 +1834,10 @@ widget "*ContrastingPopup*" style:highest "contrasting_popup"
 
 widget "*RouteNameEditorEntry" style:highest "text_cell_entry"
 widget "*RegionNameEditorEntry" style:highest "text_cell_entry"
+
+style "tooltip" = "medium_text"
+{
+        fg[NORMAL] = @@COLPREFIX@_fg_tooltip
+        bg[NORMAL] = @@COLPREFIX@_bg_tooltip
+}
+widget "gtk-tooltip*" style:highest "tooltip"
diff --git a/gtk2_ardour/ardour3_ui_light.rc.in b/gtk2_ardour/ardour3_ui_light.rc.in
index dcedb4c7db..f3bdcd4adc 100644
--- a/gtk2_ardour/ardour3_ui_light.rc.in
+++ b/gtk2_ardour/ardour3_ui_light.rc.in
@@ -1834,3 +1834,10 @@ widget "*ContrastingPopup*" style:highest "contrasting_popup"
 
 widget "*RouteNameEditorEntry" style:highest "text_cell_entry"
 widget "*RegionNameEditorEntry" style:highest "text_cell_entry"
+
+style "tooltip" = "medium_text"
+{
+        fg[NORMAL] = @@COLPREFIX@_fg_tooltip
+        bg[NORMAL] = @@COLPREFIX@_bg_tooltip
+}
+widget "gtk-tooltip*" style:highest "tooltip"