diff --git a/CMakeLists.txt b/CMakeLists.txt
index c0c7004b83..0a1402a5d0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,9 +9,7 @@ if(ANDROID)
 endif()
 
 if (IOS)
-	if (${IOS_PLATFORM} STREQUAL "OS")
-		set(ARM ON)
-	endif()
+	set(ARM ON)
 endif()
 
 if(BLACKBERRY)
diff --git a/ios/ios.toolchain.cmake b/ios/ios.toolchain.cmake
index eeb0fd3deb..9af6cb06e6 100644
--- a/ios/ios.toolchain.cmake
+++ b/ios/ios.toolchain.cmake
@@ -4,10 +4,9 @@
 
 # Options:
 #
-# IOS_PLATFORM = OS (default) or SIMULATOR
-#   This decides if SDKS will be selected from the iPhoneOS.platform or iPhoneSimulator.platform folders
+# IOS_PLATFORM = OS (default)
+#   This needs to be OS as the simulator cannot use the required GLES2.0 environment.
 #   OS - the default, used to build for iPhone and iPad physical devices, which have an arm arch.
-#   SIMULATOR - used to build for the Simulator platforms, which have an x86 arch.
 #
 # CMAKE_IOS_DEVELOPER_ROOT = automatic(default) or /path/to/platform/Developer folder
 #   By default this location is automatcially chosen based on the IOS_PLATFORM value above.
@@ -96,16 +95,11 @@ set (IOS_PLATFORM ${IOS_PLATFORM} CACHE STRING "Type of iOS Platform")
 # Check the platform selection and setup for developer root
 if (${IOS_PLATFORM} STREQUAL "OS")
 	set (IOS_PLATFORM_LOCATION "iPhoneOS.platform")
-
-	# This causes the installers to properly locate the output libraries
 	set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-iphoneos")
 elseif (${IOS_PLATFORM} STREQUAL "SIMULATOR")
-	set (IOS_PLATFORM_LOCATION "iPhoneSimulator.platform")
-
-	# This causes the installers to properly locate the output libraries
-	set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-iphonesimulator")
+	message (FATAL_ERROR "Unsupported IOS_PLATFORM value selected. PPSSPP is unable to run on simulator")
 else (${IOS_PLATFORM} STREQUAL "OS")
-	message (FATAL_ERROR "Unsupported IOS_PLATFORM value selected. Please choose OS or SIMULATOR")
+	message (FATAL_ERROR "Unsupported IOS_PLATFORM value selected. Please choose OS or leave default")
 endif (${IOS_PLATFORM} STREQUAL "OS")
 
 # Setup iOS developer location unless specified manually with CMAKE_IOS_DEVELOPER_ROOT
@@ -141,9 +135,7 @@ set (CMAKE_OSX_SYSROOT ${CMAKE_IOS_SDK_ROOT} CACHE PATH "Sysroot used for iOS su
 # set the architecture for iOS 
 # NOTE: Currently both ARCHS_STANDARD_32_BIT and ARCHS_UNIVERSAL_IPHONE_OS set armv7 only, so set both manually
 if (${IOS_PLATFORM} STREQUAL "OS")
-	set (IOS_ARCH armv7)
-else (${IOS_PLATFORM} STREQUAL "OS")
-	set (IOS_ARCH i386)
+	set (IOS_ARCH armv7 armv7s)
 endif (${IOS_PLATFORM} STREQUAL "OS")
 
 set (CMAKE_OSX_ARCHITECTURES ${IOS_ARCH} CACHE string  "Build architecture for iOS")