diff --git a/Kernel/Devices/UHCIController.h b/Kernel/Devices/UHCIController.h
index b031449df0..ed71595f03 100644
--- a/Kernel/Devices/UHCIController.h
+++ b/Kernel/Devices/UHCIController.h
@@ -24,6 +24,8 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#pragma once
+
 #include <Kernel/IO.h>
 #include <Kernel/PCI/Device.h>