diff --git a/src/utils/DawnHelpers.h b/src/utils/DawnHelpers.h
index 1bbe87f1fd..538ebe0e7c 100644
--- a/src/utils/DawnHelpers.h
+++ b/src/utils/DawnHelpers.h
@@ -12,6 +12,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#ifndef UTILS_DAWNHELPERS_H_
+#define UTILS_DAWNHELPERS_H_
+
 #include <dawn/dawncpp.h>
 
 #include <initializer_list>
@@ -98,3 +101,5 @@ namespace utils {
         std::initializer_list<BindingInitializationHelper> bindingsInitializer);
 
 }  // namespace utils
+
+#endif  // UTILS_DAWNHELPERS_H_
\ No newline at end of file
diff --git a/src/utils/SystemUtils.h b/src/utils/SystemUtils.h
index 465e0f66e7..828eb58aab 100644
--- a/src/utils/SystemUtils.h
+++ b/src/utils/SystemUtils.h
@@ -12,7 +12,12 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#ifndef UTILS_SYSTEMUTILS_H_
+#define UTILS_SYSTEMUTILS_H_
+
 namespace utils {
 
     void USleep(unsigned int usecs);
 }
+
+#endif  // UTILS_SYSTEMUTILS_H_
\ No newline at end of file