diff --git a/projects/ROCKNIX/packages/emulators/standalone/mupen64plus-sa/mupen64plus-sa-core/package.mk b/projects/ROCKNIX/packages/emulators/standalone/mupen64plus-sa/mupen64plus-sa-core/package.mk
index 23aa1b9d04..2c9646fa44 100644
--- a/projects/ROCKNIX/packages/emulators/standalone/mupen64plus-sa/mupen64plus-sa-core/package.mk
+++ b/projects/ROCKNIX/packages/emulators/standalone/mupen64plus-sa/mupen64plus-sa-core/package.mk
@@ -15,9 +15,9 @@ PKG_TOOLCHAIN="manual"
 
 if [ "${VULKAN_SUPPORT}" = "yes" ]; then
   PKG_DEPENDS_TARGET+=" ${VULKAN}"
-  export VULKAN=1
+  PKG_MAKE_OPTS_TARGET+=" VULKAN=1"
 else
-  export VULKAN=0
+  PKG_MAKE_OPTS_TARGET+=" VULKAN=0"
 fi
 
 case ${DEVICE} in
diff --git a/projects/ROCKNIX/packages/emulators/standalone/mupen64plus-sa/mupen64plus-sa-simplecore/package.mk b/projects/ROCKNIX/packages/emulators/standalone/mupen64plus-sa/mupen64plus-sa-simplecore/package.mk
index d4458ad525..dd58f37c7c 100644
--- a/projects/ROCKNIX/packages/emulators/standalone/mupen64plus-sa/mupen64plus-sa-simplecore/package.mk
+++ b/projects/ROCKNIX/packages/emulators/standalone/mupen64plus-sa/mupen64plus-sa-simplecore/package.mk
@@ -40,7 +40,7 @@ make_target() {
   esac
 
   # Always diable Vulkan
-  export VULKAN=0
+  PKG_MAKE_OPTS_TARGET+=" VULKAN=0"
 
   export BINUTILS="$(get_build_dir binutils)/.${TARGET_NAME}"
   export NEW_DYNAREC=1