diff --git a/tests/Makefile.am b/tests/Makefile.am
index ba61d03..e3c7702 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -1,11 +1,14 @@
 ACLOCAL_AMFLAGS = -I m4
 AUTOMAKE_OPTIONS = subdir-objects
 
+if IS_AMD
+else
 TESTS_ENVIRONMENT = valgrind \
 		    --error-exitcode=123 \
 		    --leak-check=full \
 		    --suppressions=./suppress/external.supp \
 		    --quiet
+endif
 TESTS = classTest
 check_PROGRAMS = classTest
 
@@ -51,15 +54,15 @@ coverage-html: clean clean-coverage check
 clean-coverage: clean-gcda clean-gcno
 	$(LCOV) -d $(top_srcdir) -z
 	-rm -rf coverage.info coverage.base coverage.run $(cov_dir)
-  
+
 clean-gcda:
 	@echo Removing old coverage results
 	-find $(top_srcdir) -name '*.gcda' -print | xargs -r rm
-  
+
 clean-gcno:
 	@echo Removing old coverage results
 	-find $(top_srcdir) -name '*.gcno' -print | xargs -r rm
-  
+
 clean-local: clean-coverage
 
 endif # HAVE_GCOV