diff --git a/libfreefare/Makefile.am b/libfreefare/Makefile.am
index 4bee080..cad9520 100644
--- a/libfreefare/Makefile.am
+++ b/libfreefare/Makefile.am
@@ -19,11 +19,12 @@ libfreefare_la_SOURCES = freefare.c \
 libfreefare_la_LIBADD =
 
 if WITH_DEBUG
+  AM_CFLAGS += -DWITH_DEBUG
 if HAS_LIBUTIL
     libfreefare_la_LIBADD += -lutil
 else # HAS_LIBUTIL
     libfreefare_la_LIBADD += $(top_builddir)/contrib/libutil/libutil.la
-    AM_CFLAGS += -I$(top_builddir)/contrib/libutil/ -DWITH_DEBUG
+    AM_CFLAGS += -I$(top_builddir)/contrib/libutil/
 endif # !HAS_LIBUTIL
 endif # WITH_DEBUG