diff --git a/TestScripts/setenv-ios.sh b/TestScripts/setenv-ios.sh
index 65dd3110..e92294ee 100755
--- a/TestScripts/setenv-ios.sh
+++ b/TestScripts/setenv-ios.sh
@@ -222,21 +222,21 @@ fi
 
 # ARM64 Simulator fixup. Under Xcode 6/iOS 8, it uses x86_64 and not i386
 if [ "$IOS_ARCH" == "x86_64" ]; then
-  IOS_FLAGS="$IOS_FLAGS -miphoneos-version-min=8 -DCRYPTOPP_DISABLE_ASM"
+  IOS_FLAGS="$IOS_FLAGS -ios_simulator_version_min -DCRYPTOPP_DISABLE_ASM"
 fi
 
 # Disable ASM for simulator. We are failing on Travis due to missing _start.
 # We may need to link against crt1.o for simulator builds. Also see
 # https://stackoverflow.com/q/24841283/608639
 if [ "$APPLE_SDK" == "WatchSimulator" ]; then
-  IOS_FLAGS="$IOS_FLAGS -DCRYPTOPP_DISABLE_ASM"
+  IOS_FLAGS="$IOS_FLAGS -watchos_simulator_version_min -DCRYPTOPP_DISABLE_ASM"
 fi
 
 # Disable ASM for simulator. We are failing on Travis due to missing _start.
 # We may need to link against crt1.o for simulator builds. Also see
 # https://stackoverflow.com/q/24841283/608639
 if [ "$APPLE_SDK" == "AppleTVSimulator" ]; then
-  IOS_FLAGS="$IOS_FLAGS -DCRYPTOPP_DISABLE_ASM"
+  IOS_FLAGS="$IOS_FLAGS -tvos_simulator_version_min -DCRYPTOPP_DISABLE_ASM"
 fi
 
 # Simulator uses i386 or x86_64, Device uses ARMv5, ARMv6, ARMv7, ARMv7s or ARMv8
diff --git a/setenv-ios.sh b/setenv-ios.sh
index 65dd3110..e92294ee 100755
--- a/setenv-ios.sh
+++ b/setenv-ios.sh
@@ -222,21 +222,21 @@ fi
 
 # ARM64 Simulator fixup. Under Xcode 6/iOS 8, it uses x86_64 and not i386
 if [ "$IOS_ARCH" == "x86_64" ]; then
-  IOS_FLAGS="$IOS_FLAGS -miphoneos-version-min=8 -DCRYPTOPP_DISABLE_ASM"
+  IOS_FLAGS="$IOS_FLAGS -ios_simulator_version_min -DCRYPTOPP_DISABLE_ASM"
 fi
 
 # Disable ASM for simulator. We are failing on Travis due to missing _start.
 # We may need to link against crt1.o for simulator builds. Also see
 # https://stackoverflow.com/q/24841283/608639
 if [ "$APPLE_SDK" == "WatchSimulator" ]; then
-  IOS_FLAGS="$IOS_FLAGS -DCRYPTOPP_DISABLE_ASM"
+  IOS_FLAGS="$IOS_FLAGS -watchos_simulator_version_min -DCRYPTOPP_DISABLE_ASM"
 fi
 
 # Disable ASM for simulator. We are failing on Travis due to missing _start.
 # We may need to link against crt1.o for simulator builds. Also see
 # https://stackoverflow.com/q/24841283/608639
 if [ "$APPLE_SDK" == "AppleTVSimulator" ]; then
-  IOS_FLAGS="$IOS_FLAGS -DCRYPTOPP_DISABLE_ASM"
+  IOS_FLAGS="$IOS_FLAGS -tvos_simulator_version_min -DCRYPTOPP_DISABLE_ASM"
 fi
 
 # Simulator uses i386 or x86_64, Device uses ARMv5, ARMv6, ARMv7, ARMv7s or ARMv8