diff --git a/CMakeLists.txt b/CMakeLists.txt
index 570df91c6..deda6250f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -187,15 +187,14 @@ if(SFML_OS_MACOSX)
         endif()
     endif()
 
-    # configure Xcode templates
-    if(CMAKE_OSX_ARCHITECTURES)
-        # maybe multiple arches are present in CMAKE_OSX_ARCHITECTURES
-        # we simply need to replace ';' by ' ' (space) and store the result in XCODE_TEMPLATES_ARCH
-        string(REPLACE ";" " " XCODE_TEMPLATES_ARCH "${CMAKE_OSX_ARCHITECTURES}")
-    else()
-        # no arch was provided to cmake, so we use the default one
-        set(XCODE_TEMPLATES_ARCH "\$(NATIVE_ARCH_ACTUAL)")
+    # only the default architecture (i.e. 64-bit) is supported
+    if(CMAKE_OSX_ARCHITECTURES AND NOT "${CMAKE_OSX_ARCHITECTURES}" STREQUAL "x86_64")
+        message(FATAL_ERROR "Only 64-bit architecture is supported")
+        return()
     endif()
+        
+    # configure Xcode templates
+    set(XCODE_TEMPLATES_ARCH "\$(NATIVE_ARCH_ACTUAL)")
 endif()
 
 if(SFML_OS_LINUX OR SFML_OS_FREEBSD)
@@ -281,7 +280,7 @@ else()
                        COMMAND cp -r ${PROJECT_SOURCE_DIR}/include/SFML/* $<TARGET_FILE_DIR:SFML>/Headers)
 
     # adapt install directory to allow distributing dylibs/frameworks in user's frameworks/application bundle
-    # NOTE: it's not required to link agains SFML.framework
+    # NOTE: it's not required to link against SFML.framework
     set_target_properties(SFML PROPERTIES
                           BUILD_WITH_INSTALL_RPATH 1
                           INSTALL_NAME_DIR "@rpath")