diff --git a/modules/juce_gui_basics/lookandfeel/juce_LookAndFeel_V2.cpp b/modules/juce_gui_basics/lookandfeel/juce_LookAndFeel_V2.cpp
index 426b672b07..ad4f1bc25c 100644
--- a/modules/juce_gui_basics/lookandfeel/juce_LookAndFeel_V2.cpp
+++ b/modules/juce_gui_basics/lookandfeel/juce_LookAndFeel_V2.cpp
@@ -607,6 +607,11 @@ void LookAndFeel_V2::drawSpinningWaitAnimation (Graphics& g, const Colour& colou
     }
 }
 
+bool LookAndFeel_V2::isProgressBarOpaque (ProgressBar& progressBar)
+{
+    return progressBar.findColour (ProgressBar::backgroundColourId).isOpaque();
+}
+
 bool LookAndFeel_V2::areScrollbarButtonsVisible()
 {
     return true;
diff --git a/modules/juce_gui_basics/lookandfeel/juce_LookAndFeel_V2.h b/modules/juce_gui_basics/lookandfeel/juce_LookAndFeel_V2.h
index 8abb2a77d0..9eeb7d84b7 100644
--- a/modules/juce_gui_basics/lookandfeel/juce_LookAndFeel_V2.h
+++ b/modules/juce_gui_basics/lookandfeel/juce_LookAndFeel_V2.h
@@ -89,6 +89,7 @@ public:
     //==============================================================================
     void drawProgressBar (Graphics&, ProgressBar&, int width, int height, double progress, const String& textToShow) override;
     void drawSpinningWaitAnimation (Graphics&, const Colour& colour, int x, int y, int w, int h) override;
+    bool isProgressBarOpaque (ProgressBar&) override;
 
     //==============================================================================
     bool areScrollbarButtonsVisible() override;
diff --git a/modules/juce_gui_basics/widgets/juce_ProgressBar.cpp b/modules/juce_gui_basics/widgets/juce_ProgressBar.cpp
index bd91e28b7d..ec607eee82 100644
--- a/modules/juce_gui_basics/widgets/juce_ProgressBar.cpp
+++ b/modules/juce_gui_basics/widgets/juce_ProgressBar.cpp
@@ -49,7 +49,7 @@ void ProgressBar::setTextToDisplay (const String& text)
 
 void ProgressBar::lookAndFeelChanged()
 {
-    setOpaque (findColour (backgroundColourId).isOpaque());
+    setOpaque (getLookAndFeel().isProgressBarOpaque (*this));
 }
 
 void ProgressBar::colourChanged()
diff --git a/modules/juce_gui_basics/widgets/juce_ProgressBar.h b/modules/juce_gui_basics/widgets/juce_ProgressBar.h
index afd9e67e2c..fffda61987 100644
--- a/modules/juce_gui_basics/widgets/juce_ProgressBar.h
+++ b/modules/juce_gui_basics/widgets/juce_ProgressBar.h
@@ -105,6 +105,8 @@ public:
         */
         virtual void drawProgressBar (Graphics&, ProgressBar&, int width, int height,
                                       double progress, const String& textToShow) = 0;
+
+        virtual bool isProgressBarOpaque (ProgressBar&) = 0;
     };
 
 protected: