diff --git a/interface/wx/aui/framemanager.h b/interface/wx/aui/framemanager.h
index ab2352a149..14c05fe6d5 100644
--- a/interface/wx/aui/framemanager.h
+++ b/interface/wx/aui/framemanager.h
@@ -213,8 +213,8 @@ public:
         If this function returns true, ::wxAUI_MGR_LIVE_RESIZE flag is ignored
         and live resize is always used, whether it's specified or not.
 
-        Currently this is the case for wxOSX port, as live resizing is the only
-        implemented method there.
+        Currently this is the case for wxOSX and wxGTK3 ports, as live resizing
+        is the only implemented method there.
 
         @since 3.1.4
      */
diff --git a/src/aui/framemanager.cpp b/src/aui/framemanager.cpp
index db03fe45cf..dda8873922 100644
--- a/src/aui/framemanager.cpp
+++ b/src/aui/framemanager.cpp
@@ -772,9 +772,9 @@ unsigned int wxAuiManager::GetFlags() const
     return m_flags;
 }
 
-// With Core Graphics on Mac, it's not possible to show sash feedback,
+// With Core Graphics on Mac or GTK 3, it's not possible to show sash feedback,
 // so we'll always use live update instead.
-#if defined(__WXMAC__)
+#if defined(__WXMAC__) || defined(__WXGTK3__)
     #define wxUSE_AUI_LIVE_RESIZE_ALWAYS 1
 #else
     #define wxUSE_AUI_LIVE_RESIZE_ALWAYS 0