diff --git a/include/umf/pools/pool_disjoint.h b/include/umf/pools/pool_disjoint.h
index 2b43cee93..c7032fd60 100644
--- a/include/umf/pools/pool_disjoint.h
+++ b/include/umf/pools/pool_disjoint.h
@@ -7,7 +7,9 @@
  *
  */
 
-#pragma once
+#ifndef UMF_DISJOINT_MEMORY_POOL_H
+#define UMF_DISJOINT_MEMORY_POOL_H 1
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -118,3 +120,5 @@ const umf_memory_pool_ops_t *umfDisjointPoolOps(void);
 #ifdef __cplusplus
 }
 #endif
+
+#endif /* UMF_DISJOINT_MEMORY_POOL_H */