diff --git a/Makefile.am b/Makefile.am
index 2e7cd529..fbe0d724 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -37,10 +37,10 @@ test-regression:
 	(cd tests && $(MAKE) test-regression)
 
 cppcheck:
-	(cppcheck . --enable=all --force)
+	cppcheck . --enable=all --force
 
 check-coding-style:
-	(vera++ -rule L004 -param max-line-length=80  `(find . -iname "*.c" ; find . -iname "*.h") | xargs`)
-	(vera++ -rule L001 `(find . -iname "*.c" ; find . -iname "*.h") | xargs`)
+	vera++ -rule L004 -param max-line-length=80  `(find . -iname "*.c" ; find . -iname "*.h") | xargs`
+	vera++ -rule L001 `(find . -iname "*.c" ; find . -iname "*.h") | xargs`
 
 .PHONY: test