diff --git a/src/openrct2-ui/libopenrct2ui.vcxproj b/src/openrct2-ui/libopenrct2ui.vcxproj
index 0d1f313fda..5a4bc5794b 100644
--- a/src/openrct2-ui/libopenrct2ui.vcxproj
+++ b/src/openrct2-ui/libopenrct2ui.vcxproj
@@ -217,7 +217,6 @@
   <Import Project="..\..\openrct2.common.props" />
   <ItemDefinitionGroup>
     <ClCompile>
-      <PreprocessorDefinitions>%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PreprocessorDefinitions Condition="'$(Breakpad)'=='true' and ('$(Platform)'=='Win32' or '$(Platform)'=='x64')">USE_BREAKPAD;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
   </ItemDefinitionGroup>