diff --git a/icedtea-web.spec b/icedtea-web.spec
index 54ed967..70f51e6 100644
--- a/icedtea-web.spec
+++ b/icedtea-web.spec
@@ -29,6 +29,8 @@ URL:        https://openwebstart.com/
 Source0:    https://github.com/AdoptOpenJDK/IcedTea-Web/archive/%{name}-%{version}-pre.0.alpha13.patched1.tar.xz
 Patch0:     patchOutDunce.patch
 Patch1:     launchersPhase.patch
+# this should be upstreamed. In build tasks which lauches java are using runtime JRE, should beusing SDK, but there is no place where to set it
+Patch2:     usePathJdkForDifferentBuildAndRuntimeJre.patch
 
 BuildRequires:  javapackages-tools
 #for deprecated add_maven_depmap, see https://www.spinics.net/lists/fedora-devel/msg233211.html
@@ -112,6 +114,7 @@ This package contains ziped sources of the IcedTea-Web project.
 %patch0 -p1
 dos2unix launchers/pom.xml
 %patch1 -p0
+%patch2 -p1
 %pom_remove_plugin org.codehaus.mojo:buildnumber-maven-plugin
 %pom_remove_plugin org.apache.maven.plugins:maven-source-plugin
 %pom_remove_plugin org.jacoco:jacoco-maven-plugin
diff --git a/usePathJdkForDifferentBuildAndRuntimeJre.patch b/usePathJdkForDifferentBuildAndRuntimeJre.patch
new file mode 100644
index 0000000..7b446f4
--- /dev/null
+++ b/usePathJdkForDifferentBuildAndRuntimeJre.patch
@@ -0,0 +1,36 @@
+diff -Naur "icedtea-web-master (copy)/launchers/build.sh" icedtea-web-master/launchers/build.sh
+--- "icedtea-web-master (copy)/launchers/build.sh"	2020-05-07 21:52:58.000000000 +0200
++++ icedtea-web-master/launchers/build.sh	2020-05-10 12:43:53.550337991 +0200
+@@ -129,7 +129,7 @@
+       -e "s|[@]MICRO_VERSION[@]|$MICRO_VERSION|g" \
+       -e "s/[@]PACKAGE_VERSION[@]/$PACKAGE_VERSION/g" \
+       $WIN_INSTALLER_DIR/installer.json.in > $TARGET_TMP/itw-installer.json
+-      "$JRE/bin/java" -jar "$WIXGEN_JAR" "$TARGET_IMAGES/`imageName $WIN_SUFFIX`" -c $TARGET_TMP/itw-installer.json -o $TARGET_TMP/itw-installer.wxs
++      "java" -jar "$WIXGEN_JAR" "$TARGET_IMAGES/`imageName $WIN_SUFFIX`" -c $TARGET_TMP/itw-installer.json -o $TARGET_TMP/itw-installer.wxs
+       pushd $TARGET_TMP
+         "$WIX_TOOLSET_DIR/candle.exe" -nologo itw-installer.wxs
+         "$WIX_TOOLSET_DIR/light.exe" -nologo -sval -ext WixUIExtension itw-installer.wixobj
+diff -Naur "icedtea-web-master (copy)/launchers/configure.sh" icedtea-web-master/launchers/configure.sh
+--- "icedtea-web-master (copy)/launchers/configure.sh"	2020-05-07 21:40:57.000000000 +0200
++++ icedtea-web-master/launchers/configure.sh	2020-05-10 12:44:06.163463501 +0200
+@@ -75,7 +75,7 @@
+ 
+ if [ "x$ITW_LIBS" == "xDISTRIBUTION" ] ; then
+   readonly JAVAWS_SRC=`ls $PROJECT_TOP/artifact-no-dependencies/target/icedtea-web-no-dependencies-*.jar | grep -v sources | grep -v javadoc | grep -v shaded`
+-  readonly OPTIONS_COMMAND="$JRE/bin/java -cp 
++  readonly OPTIONS_COMMAND="java -cp 
+   `ls $PROJECT_TOP/artifact-all-dependencies/target/icedtea-web-all-dependencies-*.jar | grep -v sources | grep -v javadoc | grep -v shaded`
+   net.adoptopenjdk.icedteaweb.commandline.CommandLineOptionsDefinition" ;
+ else
+diff -Naur "icedtea-web-master (copy)/launchers/utils.sh" icedtea-web-master/launchers/utils.sh
+--- "icedtea-web-master (copy)/launchers/utils.sh"	2020-05-07 21:44:56.000000000 +0200
++++ icedtea-web-master/launchers/utils.sh	2020-05-10 12:45:32.689324481 +0200
+@@ -140,7 +140,7 @@
+     local WIN_LOC_OVERWRITE="-Duser.language=$ID -Duser.country=$COUNTRY -Dfile.encoding=$ENCOD"
+   fi
+   mkdir -p $langDir
+-  "$JRE"/bin/java \
++  java \
+     $WIN_LOC_OVERWRITE \
+     -cp `createCp $JAVAWS_SRC` \
+     net.sourceforge.jnlp.util.docprovider.TextsProvider \