diff --git a/tests/Makefile b/tests/Makefile
index cf817ad..0e601bd 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -199,7 +199,7 @@ ex%: $(top_srcdir)/examples/ex%.c
 
 # tiny assembler testing
 asmtest.ref: asmtest.S
-	$(CC) -m32 -Wa,-W -o asmtest.ref.o -c asmtest.S
+	$(CC) -Wa,-W -o asmtest.ref.o -c asmtest.S
 	objdump -D asmtest.ref.o > asmtest.ref
 
 asmtest: asmtest.ref