diff --git a/windows/clean.bat b/windows/clean.bat
index 2448317f..ab78c95d 100644
--- a/windows/clean.bat
+++ b/windows/clean.bat
@@ -1,2 +1,2 @@
 Rem manually performs "make clean"
-del *.aux *.d *.toc *.out *.log *.nav *.snm *.sbx *.sxd
+FOR %%A IN (*.aux *.d *.toc *.out *.log *.nav *.snm *.sbx *.sxd) DO DEL %%A
diff --git a/windows/cleanall.bat b/windows/cleanall.bat
index ee0255b1..02df9ca2 100644
--- a/windows/cleanall.bat
+++ b/windows/cleanall.bat
@@ -1,3 +1,4 @@
+Rem remove pdf files
+FOR %%A IN (*.pdf) DO DEL %%A
 Rem manually performs "make cleanall"
 windows\\clean.bat
-del *.pdf