diff --git a/Libraries/LibWeb/CSS/StyleInvalidation.cpp b/Libraries/LibWeb/CSS/StyleInvalidation.cpp
index 3fc9defa209..f4bd5ef063a 100644
--- a/Libraries/LibWeb/CSS/StyleInvalidation.cpp
+++ b/Libraries/LibWeb/CSS/StyleInvalidation.cpp
@@ -15,7 +15,7 @@ RequiredInvalidationAfterStyleChange compute_property_invalidation(CSS::Property
 {
     RequiredInvalidationAfterStyleChange invalidation;
 
-    bool const property_value_changed = (!old_value || !new_value) || *old_value != *new_value;
+    bool const property_value_changed = (old_value || new_value) && ((!old_value || !new_value) || *old_value != *new_value);
     if (!property_value_changed)
         return invalidation;