diff --git a/modules/juce_gui_basics/windows/juce_VBlankAttachment.cpp b/modules/juce_gui_basics/windows/juce_VBlankAttachment.cpp
index 27e71ec57b..ee0318d15a 100644
--- a/modules/juce_gui_basics/windows/juce_VBlankAttachment.cpp
+++ b/modules/juce_gui_basics/windows/juce_VBlankAttachment.cpp
@@ -80,9 +80,9 @@ VBlankAttachment::~VBlankAttachment()
     cleanup();
 }
 
-void VBlankAttachment::onVBlank (double timestampMs)
+void VBlankAttachment::onVBlank (double timestampSec)
 {
-    NullCheckedInvocation::invoke (callback, timestampMs);
+    NullCheckedInvocation::invoke (callback, timestampSec);
 }
 
 void VBlankAttachment::componentParentHierarchyChanged (Component&)
diff --git a/modules/juce_gui_basics/windows/juce_VBlankAttachment.h b/modules/juce_gui_basics/windows/juce_VBlankAttachment.h
index 9b53aa1f6c..817bdc13ca 100644
--- a/modules/juce_gui_basics/windows/juce_VBlankAttachment.h
+++ b/modules/juce_gui_basics/windows/juce_VBlankAttachment.h
@@ -80,7 +80,7 @@ public:
 
 private:
     //==============================================================================
-    void onVBlank (double timestampMs) override;
+    void onVBlank (double timestampSec) override;
 
     //==============================================================================
     void componentParentHierarchyChanged (Component&) override;