diff --git a/MacOSX/build-package.in b/MacOSX/build-package.in
index 0b60ecb4..62364771 100755
--- a/MacOSX/build-package.in
+++ b/MacOSX/build-package.in
@@ -12,9 +12,9 @@
 #SIGNING_IDENTITY=BA3CE53D402E3C75246557E2890F929F4A778DDE
 
 if test -z "$ENABLE_CRYPTOTOKENKIT"; then
-	MACOS_VERSION_MIN="10.10"
+	export MACOSX_DEPLOYMENT_TARGET="10.10"
 else
-	MACOS_VERSION_MIN="10.12"
+	export MACOSX_DEPLOYMENT_TARGET="10.12"
 fi
 
 set -ex
@@ -25,7 +25,7 @@ BUILDPATH=${PWD}
 SDK_PATH=$(xcrun --sdk macosx --show-sdk-path)
 
 # Set SDK path
-export CFLAGS="$CFLAGS -isysroot $SDK_PATH -arch x86_64 -mmacosx-version-min=$MACOS_VERSION_MIN"
+export CFLAGS="$CFLAGS -isysroot $SDK_PATH -arch x86_64 -mmacosx-version-min=$MACOSX_DEPLOYMENT_TARGET"
 
 export SED=/usr/bin/sed
 PREFIX=/Library/OpenSC
@@ -39,7 +39,7 @@ if ! pkg-config libcrypto --atleast-version=1.0.1; then
 			git clone --depth=1 https://github.com/openssl/openssl.git -b OpenSSL_1_0_2-stable
 		fi
 		cd openssl
-		KERNEL_BITS=64 ./config --prefix=$PREFIX -mmacosx-version-min=$MACOS_VERSION_MIN
+		KERNEL_BITS=64 ./config --prefix=$PREFIX -mmacosx-version-min=$MACOSX_DEPLOYMENT_TARGET
 		make clean
 		make update
 		make depend