diff --git a/openjdk13-boot/Pkgfile b/openjdk13-boot/Pkgfile
index 0f6f6a2..cd0ddbf 100644
--- a/openjdk13-boot/Pkgfile
+++ b/openjdk13-boot/Pkgfile
@@ -7,16 +7,13 @@ name=openjdk13-boot
 version=13.0.5.1+1
 _boot_ver=20210207
 _cert_ver=20200215
+_jdkhash=7f0467e5aa8e
 release=1
 source=(https://crux.ster.zone/downloads/java/openjdk-$version.tar.bz2
   https://crux.ster.zone/downloads/java/openjdk12-boot-$_boot_ver.tar.xz
   https://crux.ster.zone/downloads/java/java_cacerts-${_cert_ver})
 
 build() {
-  # Make sure we do not have ccache masquerade directory in PATH.
-  # Use --enable-ccache instead of providing a wrapped compiler.
-  # NOTE: the check for usr/bin/ccache may be too specific, since it rules out
-  #       local or opt installs.
   if [ -e '/usr/bin/ccache' ]; then
     PATH=$(echo ${PATH} | awk -v RS=: -v ORS=: '/ccache/ {next} {print}' | sed 's/:*$//')
     PKGMK_JDK13+=' --enable-ccache'
@@ -30,39 +27,43 @@ build() {
   unset CXXFLAGS
   unset LDFLAGS
   unset MAKEFLAGS
+  export _CFLAGS+=' -fcommon'
+  export _CXXFLAGS+=' -fcommon'
 
   [ -z $JOBS ] && JOBS=$(nproc)
 
   mkdir $SRC/{build-boot,build}
   cd $SRC/build-boot
 
-  export _CFLAGS+=' -fcommon'
-  export _CXXFLAGS+=' -fcommon'
-  LC_ALL=C
-  /bin/bash ../jdk13u-jdk-$version/configure $PKGMK_JDK13 \
+  local _COMMON_OPTIONS="
+    --disable-hotspot-gtest
+    --disable-precompiled-headers
+    --disable-warnings-as-errors
+    --enable-dtrace=no
+    --enable-headless-only
+    --enable-unlimited-crypto
+    --with-native-debug-symbols=none
+    --with-debug-level=release
+    --with-stdc++lib=dynamic
+    --with-jvm-variants=server
+    --with-cacerts-file=$SRC/java_cacerts-$_cert_ver
+    --with-jtreg=no
+    --with-boot-jdk=$JAVA_HOME
+    --with-version-opt=CRUX-r$release
+    --with-version-build=${version#*+}
+    --with-vendor-name=CRUX
+    --with-jobs=$JOBS
+    --with-libjpeg=system
+    --with-giflib=system
+    --with-libpng=system
+    --with-zlib=system
+    --with-lcms=system"
+
+
+  LC_ALL=C \
+  /bin/bash $SRC/jdk13u-$_jdkhash/configure $PKGMK_JDK13 \
+    $_COMMON_OPTIONS \
     --prefix=$SRC/build-boot/images/jdk \
-    --disable-hotspot-gtest \
-    --disable-precompiled-headers \
-    --disable-warnings-as-errors \
-    --enable-dtrace=no \
-    --enable-headless-only \
-    --enable-unlimited-crypto \
-    --with-native-debug-symbols=none \
-    --with-debug-level=release \
-    --with-stdc++lib=dynamic \
-    --with-jvm-variants=server \
-    --with-cacerts-file=$SRC/java_cacerts-$_cert_ver \
-    --with-jtreg=no \
-    --with-boot-jdk=$JAVA_HOME \
-    --with-version-opt="CRUX-r$release" \
-    --with-version-build="${version#*+}" \
-    --with-vendor-name="CRUX" \
-    --with-jobs=$JOBS \
-    --with-libjpeg=system \
-    --with-giflib=system \
-    --with-libpng=system \
-    --with-zlib=system \
-    --with-lcms=system \
     --with-extra-cflags="$_CFLAGS" \
     --with-extra-cxxflags="$_CXXFLAGS"
 
@@ -75,31 +76,10 @@ build() {
 
   cd $SRC/build
 
-  LC_ALL=C
-  /bin/bash ../jdk13u-jdk-$version/configure $PKGMK_JDK13 \
+  LC_ALL=C \
+  /bin/bash $SRC/jdk13u-$_jdkhash/configure $PKGMK_JDK13 \
+    $_COMMON_OPTIONS \
     --prefix=/$name \
-    --disable-hotspot-gtest \
-    --disable-precompiled-headers \
-    --disable-warnings-as-errors \
-    --enable-dtrace=no \
-    --enable-headless-only \
-    --enable-unlimited-crypto \
-    --with-native-debug-symbols=none \
-    --with-debug-level=release \
-    --with-stdc++lib=dynamic \
-    --with-jvm-variants=server \
-    --with-cacerts-file=$SRC/java_cacerts-$_cert_ver \
-    --with-jtreg=no \
-    --with-boot-jdk=$JAVA_HOME \
-    --with-version-opt="CRUX-r$release" \
-    --with-version-build="${version#*+}" \
-    --with-vendor-name="CRUX" \
-    --with-jobs=$JOBS \
-    --with-libjpeg=system \
-    --with-giflib=system \
-    --with-libpng=system \
-    --with-zlib=system \
-    --with-lcms=system \
     --with-extra-cflags="$_CFLAGS" \
     --with-extra-cxxflags="$_CXXFLAGS"