1 files changed, 7 insertions, 0 deletions
diff --git a/src/ring.h b/src/types/ring.h
index 5825810..0474f39 100644
--- a/src/ring.h
+++ b/src/types/ring.h
@@ -15,6 +15,10 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
+#ifndef TYPES_RING_H
+#define TYPES_RING_H
+
+
 #include <stddef.h>
 
 
@@ -143,3 +147,6 @@ static inline int ring_have_more(struct ring* restrict this)
   return this->buffer != NULL;
 }
 
+
+#endif
+