diff --git a/openrct2.common.props b/openrct2.common.props
index 8794d431bd..c441455d66 100644
--- a/openrct2.common.props
+++ b/openrct2.common.props
@@ -51,7 +51,7 @@
              C4549: 'operator': operator before comma has no effect; did you intend 'operator'?
              C4555: expression has no effect; expected expression with side-effect
       -->
-      <PreprocessorDefinitions>OPENGL_NO_LINK;_CRT_SECURE_NO_WARNINGS;_USE_MATH_DEFINES;CURL_STATICLIB;SDL_MAIN_HANDLED;_WINSOCK_DEPRECATED_NO_WARNINGS;ZIP_STATIC;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>__SSE4_1__;OPENGL_NO_LINK;_CRT_SECURE_NO_WARNINGS;_USE_MATH_DEFINES;CURL_STATICLIB;SDL_MAIN_HANDLED;_WINSOCK_DEPRECATED_NO_WARNINGS;ZIP_STATIC;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <TreatWarningAsError>true</TreatWarningAsError>