diff --git a/extra/java-openjdk/PKGBUILD b/extra/java-openjdk/PKGBUILD
index 1a6a7af62..b57293b34 100644
--- a/extra/java-openjdk/PKGBUILD
+++ b/extra/java-openjdk/PKGBUILD
@@ -68,7 +68,7 @@ _nonheadless=(lib/libawt_xawt.{so,debuginfo}
 build() {
   cd ${_jdkdir}
 
-  export MAKEFLAGS="-j5"
+  [[ $CARCH != "aarch64" ]] && export MAKEFLAGS="-j2"
 
   NUM_PROC_OPT=''
   MAKEFLAG_J=$(echo ${MAKEFLAGS} | sed -En 's/.*-j([0-9]+).*/\1/p')