diff --git a/extraction/Makefile b/extraction/Makefile
index ac162db78518801a86de66eb1ff626c81c25d36c..0aee0be6f2ac58949be4f3c99b696b9df4552523 100644
--- a/extraction/Makefile
+++ b/extraction/Makefile
@@ -40,7 +40,8 @@ Configuration.ml: ../Makefile.config
          echo 'let asm = "$(CASM)"'; \
          echo 'let linker = "$(CLINKER)"'; \
          echo 'let arch = "$(ARCH)"'; \
-         echo 'let variant = "$(VARIANT)"') \
+         echo 'let variant = "$(VARIANT)"'; \
+         echo 'let system = "$(SYSTEM)"') \
         > Configuration.ml
 
 clean: