diff --git a/Makefile b/Makefile
index 1003843ce..4b9619f3e 100644
--- a/Makefile
+++ b/Makefile
@@ -64,15 +64,15 @@ install:
 # Check if groff reports warnings (may be words of sentences not displayed)
 # from http://lintian.debian.org/tags/manpage-has-errors-from-man.html 
 check-groff-warnings:
-	GROFF_LOG=$$(mktemp /tmp/manpages-checksXXXX); \
+	GROFF_LOG="$$(mktemp --tmpdir manpages-checksXXXX)" || exit $$?; \
 	for i in man?/*.[1-9]; \
 	do \
-		if grep -q 'SH.*NAME' $$i; then \
-			LC_ALL=en_US.UTF-8 MANWIDTH=80 man --warnings -E UTF-8 -l $$i > /dev/null 2>$$GROFF_LOG; \
-			[ -s $$GROFF_LOG ] && ( echo "$$i: " ; cat $$GROFF_LOG ; echo "" ); \
-			rm $$GROFF_LOG 2>/dev/null; \
-		fi \
-	done
+		if grep -q 'SH.*NAME' "$$i"; then \
+			LC_ALL=en_US.UTF-8 MANWIDTH=80 man --warnings -E UTF-8 -l "$$i" > /dev/null 2>| "$$GROFF_LOG"; \
+			[ -s "$$GROFF_LOG" ] && { echo "$$i: "; cat "$$GROFF_LOG"; echo; }; \
+		fi; \
+	done; \
+	rm -f "$$GROFF_LOG"
 
 # someone might also want to look at /var/catman/cat2 or so ...
 # a problem is that the location of cat pages varies a lot