diff --git a/cpu/x86/Makefile.x86 b/cpu/x86/Makefile.x86
index cf9e4a666..9afaaea49 100644
--- a/cpu/x86/Makefile.x86
+++ b/cpu/x86/Makefile.x86
@@ -18,3 +18,12 @@ LDFLAGS  = -Wl,-Map=contiki.map,-export-dynamic
 
 %.so: $(OBJECTDIR)/%.o
 	$(LD) -shared -o $@ $^
+
+.PHONY: symbols.c symbols.h
+ifdef CORE
+symbols.c symbols.h:
+	@${CONTIKI}/tools/make-symbols $(CORE)
+else
+symbols.c symbols.h:
+	@${CONTIKI}/tools/make-empty-symbols
+endif