diff --git a/cmake/VSTConfig.cmake b/cmake/VSTConfig.cmake
index 04ded138..dece48ab 100644
--- a/cmake/VSTConfig.cmake
+++ b/cmake/VSTConfig.cmake
@@ -21,7 +21,7 @@ if(NOT VST3_PACKAGE_ARCHITECTURE)
     else()
         if(VST3_SYSTEM_PROCESSOR MATCHES "^(x86_64|amd64|AMD64)$")
             set(VST3_PACKAGE_ARCHITECTURE "x86_64")
-        elseif(VST3_SYSTEM_PROCESSOR MATCHES "^(i.86|x86)$")
+        elseif(VST3_SYSTEM_PROCESSOR MATCHES "^(i.86|x86|X86)$")
             if(WIN32)
                 set(VST3_PACKAGE_ARCHITECTURE "x86")
             else()