diff --git a/cpu/at91sam7s/Makefile.at91sam7s b/cpu/at91sam7s/Makefile.at91sam7s
index ac53aa999..e3bd7003b 100644
--- a/cpu/at91sam7s/Makefile.at91sam7s
+++ b/cpu/at91sam7s/Makefile.at91sam7s
@@ -145,7 +145,7 @@ ifdef CORE
 	$(CC) $(LDFLAGS) $(CFLAGS) -nostartfiles -o $@ $(filter-out %.a,$^) $(filter %.a,$^) -lc $(filter %.a,$^)
 
 symbols.c: $(CORE)
-	$(NM) $< | awk -f $(CONTIKI_CPU)/builtins.awk -f ../../tools/mknmlist > symbols.c
+	$(NM) $< | awk -f $(CONTIKI_CPU)/builtins.awk -f $(CONTIKI)/tools/mknmlist > symbols.c
 
 else
 %.$(TARGET): %-nosyms.$(TARGET)
diff --git a/cpu/msp430/Makefile.msp430 b/cpu/msp430/Makefile.msp430
index c54a249b5..256066793 100644
--- a/cpu/msp430/Makefile.msp430
+++ b/cpu/msp430/Makefile.msp430
@@ -1,4 +1,4 @@
-# $Id: Makefile.msp430,v 1.28 2009/03/17 15:56:32 adamdunkels Exp $
+# $Id: Makefile.msp430,v 1.29 2009/09/03 17:41:58 adamdunkels Exp $
 
 ifdef nodeid
 CFLAGS += -DNODEID=$(nodeid)
@@ -86,7 +86,7 @@ loader-init.o: ${CONTIKI_TARGET}/loader/loader-init.S
 ifdef CORE
 symbols.c:
 #	@${CONTIKI}/tools/msp430-make-symbols $(CORE)
-	$(NM) $(CORE) | awk -f ../../tools/mknmlist > symbols.c
+	$(NM) $(CORE) | awk -f $(CONTIKI)/tools/mknmlist > symbols.c
 else
 symbols.c symbols.h:
 	@${CONTIKI}/tools/make-empty-symbols
diff --git a/cpu/native/Makefile.native b/cpu/native/Makefile.native
index 26be02e95..076de88d7 100644
--- a/cpu/native/Makefile.native
+++ b/cpu/native/Makefile.native
@@ -24,7 +24,7 @@ LDFLAGS  = -Wl,-Map=contiki-$(TARGET).map,-export-dynamic
 ifdef CORE
 .PHONY: symbols.c symbols.h
 symbols.c symbols.h:
-	$(NM) -C $(CORE) | grep -v @ | grep -v dll_crt0 | awk -f ../../tools/mknmlist > symbols.c
+	$(NM) -C $(CORE) | grep -v @ | grep -v dll_crt0 | awk -f $(CONTIKI)/tools/mknmlist > symbols.c
 #	@${CONTIKI}/tools/make-symbols $(CORE)
 else
 symbols.c symbols.h:
diff --git a/cpu/x86/Makefile.x86 b/cpu/x86/Makefile.x86
index 3ec7633f7..a234f8922 100644
--- a/cpu/x86/Makefile.x86
+++ b/cpu/x86/Makefile.x86
@@ -20,7 +20,7 @@ LDFLAGS  = -Wl,-Map=contiki-$(TARGET).map,-export-dynamic
 # .PHONY: symbols.c symbols.h
 ifdef CORE
 symbols.c symbols.h:
-	$(NM) $(CORE) | awk -f ../../tools/mknmlist > symbols.c
+	$(NM) $(CORE) | awk -f $(CONTIKI)/tools/mknmlist > symbols.c
 #	@${CONTIKI}/tools/make-symbols $(CORE)
 else
 symbols.c symbols.h: