diff --git a/build-mac/dependencies/prepare-cyrus-sasl.sh b/build-mac/dependencies/prepare-cyrus-sasl.sh
index 02af7e7..bbe12d8 100755
--- a/build-mac/dependencies/prepare-cyrus-sasl.sh
+++ b/build-mac/dependencies/prepare-cyrus-sasl.sh
@@ -111,14 +111,15 @@ LIB_NAME=$ARCHIVE
 TARGETS="iPhoneOS iPhoneSimulator"
 
 SDK_IOS_MIN_VERSION=7.0
-SDK_IOS_VERSION="`xcodebuild -version -sdk 2>/dev/null | egrep SDKVersion | tail -n 1 | sed -E -n -e 's|SDKVersion: *(.*) *$|\1|p'`"
+SDK_IOS_VERSION="$(xcodebuild -version -sdk 'iphoneos' 2>/dev/null | egrep '^SDKVersion: ' | cut -d" " -f 2 | sort -n | tail -n1)"
 BUILD_DIR="$tmpdir/build"
 INSTALL_PATH="${BUILD_DIR}/${LIB_NAME}/universal"
 
 for TARGET in $TARGETS; do
 
     DEVELOPER="$(xcode-select --print-path)"
-    SYSROOT="`xcodebuild -version -sdk 2>/dev/null | egrep $TARGET -B 3 | egrep '^Path: '| egrep $SDK_IOS_VERSION | sort -u | tail -n 1| cut -d ' ' -f 2`"
+    SDK_ID="$(echo "$TARGET$SDK_IOS_VERSION" | tr A-Z a-z)"
+    SYSROOT="$(xcodebuild -version -sdk "$SDK_ID" 2>/dev/null | egrep '^Path: ' | cut -d ' ' -f 2)"
 
     case $TARGET in
         (iPhoneOS)