diff --git a/core/src/gui/widgets/waterfall.cpp b/core/src/gui/widgets/waterfall.cpp
index 49b43e26..c25ec1e6 100644
--- a/core/src/gui/widgets/waterfall.cpp
+++ b/core/src/gui/widgets/waterfall.cpp
@@ -359,7 +359,7 @@ namespace ImGui {
         }
 
         // Finally, if nothing else was selected, just move the VFO
-        if (ImGui::IsMouseDown(ImGuiMouseButton_Left)) {
+        if (ImGui::IsMouseDown(ImGuiMouseButton_Left) && (mouseInFFT|mouseInWaterfall)) {
             if (selVfo != NULL) {
                 int refCenter = mousePos.x - (widgetPos.x + 50);
                 if (refCenter >= 0 && refCenter < dataWidth) {