diff --git a/Binary/Clean.cmd b/Binary/Clean.cmd
index 28826acb..87c844e3 100644
--- a/Binary/Clean.cmd
+++ b/Binary/Clean.cmd
@@ -7,7 +7,6 @@ if exist *.com del *.com
 if exist *.img del *.img
 if exist *.rom del *.rom
 if exist *.pdf del *.pdf
-if exist *.log del *.log
 if exist *.eeprom del *.eeprom
 
 setlocal & cd Apps && call Clean || exit /b 1 & endlocal
diff --git a/Source/CPM3/Makefile b/Source/CPM3/Makefile
index d64e7e72..46c6bc32 100644
--- a/Source/CPM3/Makefile
+++ b/Source/CPM3/Makefile
@@ -89,12 +89,10 @@ zpmbios3.spr: $(BIOSOBJS)
 
 cpm3.sys: cpm3$(DEFCPM3).sys
 	cp cpm3$(DEFCPM3).sys cpm3.sys
-	rm -f /tmp/casefn.cache
 
 gencpm.dat: gen$(DEFCPM3).dat
 	cp gen$(DEFCPM3).dat gencpm.dat
-	rm -f /tmp/casefn.cache
-	
+
 cpmldr.sys: loader.bin cpmldr.bin
 	cat loader.bin cpmldr.bin > $@
 
diff --git a/Source/ZPM3/Makefile b/Source/ZPM3/Makefile
index 69d1458f..46d98359 100644
--- a/Source/ZPM3/Makefile
+++ b/Source/ZPM3/Makefile
@@ -50,9 +50,7 @@ startzpm.com: ../ZCCP/startzpm.com
 	cp $< $@
 
 cpmldr.com: ../CPM3/cpmldr.com
-	rm -f /tmp/casefn.cache
 	cp $< $@
 
 cpmldr.sys: ../CPM3/cpmldr.sys
-	rm -f /tmp/casefn.cache
 	cp $< $@
diff --git a/Tools/Makefile.inc b/Tools/Makefile.inc
index 26cf36e2..46d8dc48 100644
--- a/Tools/Makefile.inc
+++ b/Tools/Makefile.inc
@@ -116,6 +116,7 @@ all:: $(OBJECTS)
 	@if [ "$(DEST)" ] ; then for file in $(filter-out $(NOCOPY),$(OBJECTS)) ; do \
 		mkdir -p $(DEST) ; \
 		echo copy $$file to $(DEST) ; \
+		rm -f /tmp/casefn.cache ; \
 		cp $$($(CASEFN) $$file) $(DEST) ; \
 	done ; fi
 	@if [ "$(DOCDEST)" ] ; then for file in $(DOCS) ; do \