--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,12 +11,17 @@
   libcopp
   VERSION "1.4.1"
   DESCRIPTION "Cross-platform coroutine library in C++ ."
   HOMEPAGE_URL "https://libcopp.atframe.work"
   LANGUAGES C CXX ASM)
 
+# libcopp requires x86 to be called i386
+if(CMAKE_SYSTEM_PROCESSOR STREQUAL "x86")
+  set(CMAKE_SYSTEM_PROCESSOR i386)
+endif()
+
 # ######################################################################################################################
 include("${PROJECT_SOURCE_DIR}/project/cmake/ProjectBuildOption.cmake")
 
 # # #############################################################################
 echowithcolor(COLOR GREEN "-- Build Type: ${CMAKE_BUILD_TYPE}")