diff --git a/layout/style/nsComputedDOMStyle.cpp b/layout/style/nsComputedDOMStyle.cpp
index 11c93732b692..e019c9fda691 100644
--- a/layout/style/nsComputedDOMStyle.cpp
+++ b/layout/style/nsComputedDOMStyle.cpp
@@ -452,7 +452,7 @@ nsComputedDOMStyle::GetPropertyValue(const nsAString& aPropertyName,
     return NS_ERROR_NOT_AVAILABLE;
   }
 
-  auto cleanup = mozilla::MakeScopeExit([&] {
+  auto cleanup = mozilla::MakeScopeExit([this] {
     ClearCurrentStyleSources();
   });