diff --git a/build/config/iPhoneSimulator b/build/config/iPhoneSimulator
index d03e78f24..2df2d50b3 100644
--- a/build/config/iPhoneSimulator
+++ b/build/config/iPhoneSimulator
@@ -6,6 +6,6 @@
 
 IPHONE_SDK         = iPhoneSimulator
 POCO_TARGET_OSARCH = x86_64
-OSFLAGS            = -arch $(POCO_TARGET_OSARCH) -isysroot $(IPHONE_SDK_BASE) -miphoneos-version-min=$(IPHONE_SDK_VERSION_MIN)
+OSFLAGS            = -arch $(POCO_TARGET_OSARCH) -isysroot $(IPHONE_SDK_BASE) -miphonesimulator-version-min=$(IPHONE_SDK_VERSION_MIN)
 
 include $(POCO_BASE)/build/config/iPhone
diff --git a/build/config/iPhoneSimulator-clang b/build/config/iPhoneSimulator-clang
index 758768e3a..0cf619958 100644
--- a/build/config/iPhoneSimulator-clang
+++ b/build/config/iPhoneSimulator-clang
@@ -6,6 +6,6 @@
 
 IPHONE_SDK         = iPhoneSimulator
 POCO_TARGET_OSARCH = x86_64
-OSFLAGS            = -arch $(POCO_TARGET_OSARCH) -isysroot $(IPHONE_SDK_BASE) -miphoneos-version-min=$(IPHONE_SDK_VERSION_MIN)
+OSFLAGS            = -arch $(POCO_TARGET_OSARCH) -isysroot $(IPHONE_SDK_BASE) -miphonesimulator-version-min=$(IPHONE_SDK_VERSION_MIN)
 
 include $(POCO_BASE)/build/config/iPhone-clang
diff --git a/build/config/iPhoneSimulator-clang-libc++ b/build/config/iPhoneSimulator-clang-libc++
index 8d1d99970..127d2706a 100644
--- a/build/config/iPhoneSimulator-clang-libc++
+++ b/build/config/iPhoneSimulator-clang-libc++
@@ -6,6 +6,6 @@
 
 IPHONE_SDK         = iPhoneSimulator
 POCO_TARGET_OSARCH = x86_64
-OSFLAGS            = -arch $(POCO_TARGET_OSARCH) -isysroot $(IPHONE_SDK_BASE) -miphoneos-version-min=$(IPHONE_SDK_VERSION_MIN)
+OSFLAGS            = -arch $(POCO_TARGET_OSARCH) -isysroot $(IPHONE_SDK_BASE) -miphonesimulator-version-min=$(IPHONE_SDK_VERSION_MIN)
 
 include $(POCO_BASE)/build/config/iPhone-clang-libc++