diff --git a/CMakeLists.txt b/CMakeLists.txt
index a6d5a9e810..71d4e2cda3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,23 +5,6 @@ if(NOT CMAKE_BUILD_TYPE)
         "Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel." FORCE)
 endif()
 
-set(_list "Debug;Release;RelWithDebInfo;MinSizeRel")
-string(TOLOWER "${_list}" _list_lower)
-string(TOLOWER ${CMAKE_BUILD_TYPE} _build_type_lower)
-list(FIND _list_lower "${_build_type_lower}" _index)
-if(NOT ${_index} EQUAL -1)
-    list(FIND _list "${CMAKE_BUILD_TYPE}" _index)
-    if(${_index} EQUAL -1)
-        string(REPLACE ";" ", " _list_pretty "${_list}")
-        message("::")
-        message(":: ERROR: build type case-mismatch: ${CMAKE_BUILD_TYPE}")
-        message("::")
-        message(":: valid types: { ${_list_pretty} }")
-        message("::")
-        message(FATAL_ERROR)
-    endif()
-endif()
-
 if(NOT CMAKE_INSTALL_PREFIX)
     set(CMAKE_INSTALL_PREFIX "${CMAKE_BINARY_DIR}" CACHE STRING
       "Directory to install zig to" FORCE)