diff --git a/Makefile b/Makefile
index 09130f8..3baccfc 100644
--- a/Makefile
+++ b/Makefile
@@ -35,16 +35,16 @@
 	@$(MAKE) -j4 --no-print-directory -C arm11
 
 #---------------------------------------------------------------------------------
-$(TARGET).firm: arm9/$(TARGET).bin arm11/$(TARGET).bin
+$(TARGET).firm: arm9/$(TARGET)9.bin arm11/$(TARGET)11.bin
 	firm_builder $(TARGET).firm $(ENTRY9) $(ENTRY11) $(SECTION0_ADR) $(SECTION0_TYPE) \
-		arm9/$(TARGET).bin $(SECTION1_ADR) $(SECTION1_TYPE) arm11/$(TARGET).bin
+		arm9/$(TARGET)9.bin $(SECTION1_ADR) $(SECTION1_TYPE) arm11/$(TARGET)11.bin
 
 #---------------------------------------------------------------------------------
-arm9/$(TARGET).bin:
+arm9/$(TARGET)9.bin:
 	@$(MAKE) -j4 --no-print-directory -C arm9
 	
 #---------------------------------------------------------------------------------
-arm11/$(TARGET).bin:
+arm11/$(TARGET)11.bin:
 	@$(MAKE) -j4 --no-print-directory -C arm11
 
 #---------------------------------------------------------------------------------
@@ -57,6 +57,6 @@
 	@$(MAKE) -j4 --no-print-directory -C arm9 NO_DEBUG=1
 	@$(MAKE) -j4 --no-print-directory -C arm11 NO_DEBUG=1
 	firm_builder $(TARGET).firm $(ENTRY9) $(ENTRY11) $(SECTION0_ADR) $(SECTION0_TYPE) \
-		arm9/$(TARGET).bin $(SECTION1_ADR) $(SECTION1_TYPE) arm11/$(TARGET).bin
+		arm9/$(TARGET)9.bin $(SECTION1_ADR) $(SECTION1_TYPE) arm11/$(TARGET)11.bin
 	@7z a -mx -m0=ARM -m1=LZMA $(TARGET)$(VERS_STRING).7z $(TARGET).firm
 	@7z u -mx -m0=PPMD $(TARGET)$(VERS_STRING).7z LICENSE.txt README.md
diff --git a/arm11/Makefile b/arm11/Makefile
index 1697d01..0994956 100644
--- a/arm11/Makefile
+++ b/arm11/Makefile
@@ -118,7 +118,7 @@
 #---------------------------------------------------------------------------------
 clean:
 	@echo clean ...
-	@rm -fr $(BUILD) $(TARGET).bin $(TARGET).elf
+	@rm -fr $(BUILD) $(TARGET)11.bin $(TARGET)11.elf
 
 
 #---------------------------------------------------------------------------------
@@ -129,13 +129,13 @@
 #---------------------------------------------------------------------------------
 # main targets
 #---------------------------------------------------------------------------------
-$(OUTPUT).bin	:	$(OUTPUT).elf
+$(OUTPUT)11.bin	:	$(OUTPUT)11.elf
 	@$(OBJCOPY) --gap-fill 0xFF -O binary $< $@
 	@echo built ... $(notdir $@)
 
 $(OFILES_SOURCES) : $(HFILES)
 
-$(OUTPUT).elf	:	$(OFILES)
+$(OUTPUT)11.elf	:	$(OFILES)
 
 #---------------------------------------------------------------------------------
 # you need a rule like this for each extension you use as binary data
diff --git a/arm9/Makefile b/arm9/Makefile
index d09180c..80d2556 100644
--- a/arm9/Makefile
+++ b/arm9/Makefile
@@ -114,7 +114,7 @@
 #---------------------------------------------------------------------------------
 clean:
 	@echo clean ...
-	@rm -fr $(BUILD) $(TARGET).bin $(TARGET).elf
+	@rm -fr $(BUILD) $(TARGET)9.bin $(TARGET)9.elf
 
 
 #---------------------------------------------------------------------------------
@@ -125,13 +125,13 @@
 #---------------------------------------------------------------------------------
 # main targets
 #---------------------------------------------------------------------------------
-$(OUTPUT).bin	:	$(OUTPUT).elf
+$(OUTPUT)9.bin	:	$(OUTPUT)9.elf
 	@$(OBJCOPY) --gap-fill 0xFF -O binary $< $@
 	@echo built ... $(notdir $@)
 
 $(OFILES_SOURCES) : $(HFILES)
 
-$(OUTPUT).elf	:	$(OFILES)
+$(OUTPUT)9.elf	:	$(OFILES)
 
 #---------------------------------------------------------------------------------
 # you need a rule like this for each extension you use as binary data