diff --git a/build/buildtools/commondefs.firm b/build/buildtools/commondefs.firm
index daf82991..71cf8edd 100644
--- a/build/buildtools/commondefs.firm
+++ b/build/buildtools/commondefs.firm
@@ -58,7 +58,7 @@ FIRM_LCFARCH		= $(FIRM_LSFARCH)
 DEFAULT_FIRM_LCFILE		= $(FIRM_SPECDIR)/$(FIRM_LCFARCH).lcf
 DEFAULT_FIRM_LCFILE_TEMPLATE	= $(FIRM_SPECDIR)/$(FIRM_LCFARCH).lcf.template
 DEFAULT_FIRM_LCFILE_SPEC	= $(FIRM_SPECDIR)/$(FIRM_LSFARCH).lsf
-DEFAULT_FIRM_ROM_SPEC	= $(FIRM_SPECDIR)/ROM-$(TWL_PLATFORM).rsf
+DEFAULT_FIRM_ROM_SPEC	= $(FIRM_SPECDIR)/ROM-$(TWL_PLATFORM)-FIRM.rsf
 
 ### Compiler & Linker settings
 
diff --git a/include/firm/specfiles/ROM-TS.rsf b/include/firm/specfiles/ROM-TS-FIRM.rsf
similarity index 100%
rename from include/firm/specfiles/ROM-TS.rsf
rename to include/firm/specfiles/ROM-TS-FIRM.rsf