diff --git a/client/tracy_SPSCQueue.h b/client/tracy_SPSCQueue.h
index 556c9b84..e9a97f39 100644
--- a/client/tracy_SPSCQueue.h
+++ b/client/tracy_SPSCQueue.h
@@ -136,7 +136,7 @@ private:
 
   // Padding to avoid adjacent allocations to share cache line with
   // writeIdxCache_
-  char padding_[kCacheLineSize - sizeof(writeIdxCache_)];
+  char padding_[kCacheLineSize - sizeof(SPSCQueue<T>::writeIdxCache_)];
 };
 } // namespace rigtorp