diff --git a/common/makefile b/common/makefile
index 4537f02..915afb4 100644
--- a/common/makefile
+++ b/common/makefile
@@ -65,10 +65,10 @@
 # on any platform, we have to check for this every time we run the
 # 'make'.  This is irritating.
 
-2HTML    = $(shell which rst2html.py  rst2html  | head -n 1)
-2LATEX   = $(shell which rst2latex.py rst2latex | head -n 1)  --stylesheet=parskip
-2ODT     = $(shell which rst2odt.py   rst2odt   | head -n 1)
-2MAN     = $(shell which rst2man.py   rst2man   | head -n 1)
+2HTML    = $(shell which rst2html.py  rst2html  2>/dev/null | head -n 1)
+2LATEX   = $(shell which rst2latex.py rst2latex 2>/dev/null | head -n 1)  --stylesheet=parskip
+2ODT     = $(shell which rst2odt.py   rst2odt   2>/dev/null | head -n 1)
+2MAN     = $(shell which rst2man.py   rst2man   2>/dev/null | head -n 1)
 
 # TeX/LaTeX Processing