diff --git a/qrenderdoc/Windows/ShaderViewer.cpp b/qrenderdoc/Windows/ShaderViewer.cpp
index 90eae5222..4802d7dd6 100644
--- a/qrenderdoc/Windows/ShaderViewer.cpp
+++ b/qrenderdoc/Windows/ShaderViewer.cpp
@@ -2459,7 +2459,7 @@ void ShaderViewer::updateDebugState()
 
     ui->debugVars->endUpdate();
 
-    ui->sourceVars->applyExpansion(expansion, 0);
+    ui->debugVars->applyExpansion(expansion, 0);
   }
 
   updateWatchVariables();