1 files changed, 2 insertions, 2 deletions
diff --git a/ev.h b/ev.h
index dc82720..a6065d0 100644
--- a/ev.h
+++ b/ev.h
@@ -27,8 +27,8 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef EV_H
-#define EV_H
+#ifndef EV_H__
+#define EV_H__
 
 #ifdef __cplusplus
 extern "C" {