diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8645eafb..1e0ab079 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,6 +12,8 @@ endif()
 
 if (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "x86_64")
 	set(ARCH "x86_64")
+elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "amd64")
+	set(ARCH "x86_64")
 elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "AMD64")
 	# cmake reports AMD64 on Windows, but we might be building for 32-bit.
 	if (CMAKE_CL_64)
@@ -21,6 +23,8 @@ elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "AMD64")
 	endif()
 elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "x86")
 	set(ARCH "x86")
+elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "i386")
+	set(ARCH "x86")
 elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "arm")
 	set(ARCH "arm")
 else()