diff --git a/dist-build/ios.sh b/dist-build/ios.sh
index 35ac85ff..8c39d5da 100755
--- a/dist-build/ios.sh
+++ b/dist-build/ios.sh
@@ -43,7 +43,7 @@ export XCODEDIR=$(xcode-select -p)
 export BASEDIR="${XCODEDIR}/Platforms/iPhoneOS.platform/Developer"
 export PATH="${BASEDIR}/usr/bin:$BASEDIR/usr/sbin:$PATH"
 export SDK="${BASEDIR}/SDKs/iPhoneOS.sdk"
-export IPHONEOS_VERSION_MIN="5.1.1"
+export IPHONEOS_VERSION_MIN=${IPHONEOS_VERSION_MIN-"5.1.1"}
 export CFLAGS="-Oz -mthumb -arch armv7 -arch armv7s -arch arm64 -isysroot ${SDK} -miphoneos-version-min=${IPHONEOS_VERSION_MIN}"
 export LDFLAGS="-mthumb -arch armv7 -arch armv7s -arch arm64 -isysroot ${SDK} -miphoneos-version-min=${IPHONEOS_VERSION_MIN}"