1 files changed, 1 insertions, 0 deletions
diff --git a/lz4.h b/lz4.h
index c8c62f6..0251157 100644
--- a/lz4.h
+++ b/lz4.h
@@ -27,6 +27,7 @@
    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
+#pragma once
 
 #if defined (__cplusplus)
 extern "C" {