diff --git a/recipes/linux-portable/portable b/recipes/linux-portable/portable
index f3c470d8..b658d9d0 100644
--- a/recipes/linux-portable/portable
+++ b/recipes/linux-portable/portable
@@ -15,10 +15,10 @@ catsfc libretro-catsfc https://github.com/libretro/CATSFC-libretro.git PROJECT Y
 desmume libretro-desmume https://github.com/libretro/desmume.git PROJECT YES GENERIC Makefile.libretro desmume 
 dinothawr libretro-dinothawr https://github.com/libretro/Dinothawr.git PROJECT YES GENERIC Makefile . 
 dosbox libretro-dosbox https://github.com/libretro/dosbox-libretro.git PROJECT YES GENERIC Makefile.libretro . 
-emux_nes libretro-emux_nes https://github.com/sronsse/emux PROJECT YES GENERIC Makefile libretro nes 
-emux_gb libretro-emux_gb https://github.com/sronsse/emux PROJECT YES GENERIC Makefile libretro gb 
-emux_sms libretro-emux_sms https://github.com/sronsse/emux PROJECT YES GENERIC Makefile libretro sms 
-emux_chip8 libretro-emux_chip8 https://github.com/sronsse/emux PROJECT YES GENERIC Makefile libretro chip8 
+emux_nes libretro-emux_nes https://github.com/sronsse/emux PROJECT YES GENERIC Makefile libretro target=nes 
+emux_gb libretro-emux_gb https://github.com/sronsse/emux PROJECT YES GENERIC Makefile libretro target=gb 
+emux_sms libretro-emux_sms https://github.com/sronsse/emux PROJECT YES GENERIC Makefile libretro target=sms 
+emux_chip8 libretro-emux_chip8 https://github.com/sronsse/emux PROJECT YES GENERIC Makefile libretro target=chip8 
 fba libretro-fba_new https://github.com/libretro/libretro-fba.git PROJECT YES GENERIC makefile.libretro . 
 fb_alpha libretro-fba https://github.com/libretro/fba-libretro.git PROJECT YES GENERIC makefile.libretro svn-current/trunk 
 fba_cores_cps1 libretro-fba https://github.com/libretro/fba-libretro.git PROJECT YES GENERIC makefile.libretro svn-current/trunk/fbacores/cps1