diff --git a/src/gtk/window.cpp b/src/gtk/window.cpp
index ee7f1f9f46..b0bc36a433 100644
--- a/src/gtk/window.cpp
+++ b/src/gtk/window.cpp
@@ -4135,7 +4135,7 @@ static inline bool IsScrollIncrement(double increment, double x)
     return fabs(increment - fabs(x)) < tolerance;
 }
 
-wxEventType wxWindow::GetScrollEventType(GtkRange* range)
+wxEventType wxWindowGTK::GetScrollEventType(GtkRange* range)
 {
     DEBUG_MAIN_THREAD