diff --git a/src/libcalamares/partition/FileSystem.h b/src/libcalamares/partition/FileSystem.h
index 6ceebda7e..9923f5dfd 100644
--- a/src/libcalamares/partition/FileSystem.h
+++ b/src/libcalamares/partition/FileSystem.h
@@ -17,6 +17,12 @@
  *   You should have received a copy of the GNU General Public License
  *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
  */
+
+/*
+ * NOTE: this functionality is only available when Calamares is compiled
+ *       with KPMcore support.
+ */
+
 #ifndef PARTITION_FILESYSTEM_H
 #define PARTITION_FILESYSTEM_H
 
diff --git a/src/libcalamares/partition/KPMManager.h b/src/libcalamares/partition/KPMManager.h
index 15df57448..5f7039221 100644
--- a/src/libcalamares/partition/KPMManager.h
+++ b/src/libcalamares/partition/KPMManager.h
@@ -16,6 +16,11 @@
  *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
  */
 
+/*
+ * NOTE: this functionality is only available when Calamares is compiled
+ *       with KPMcore support.
+ */
+
 #ifndef PARTITION_KPMMANAGER_H
 #define PARTITION_KPMMANAGER_H
 
diff --git a/src/libcalamares/partition/PartitionIterator.h b/src/libcalamares/partition/PartitionIterator.h
index c91a452ad..78d930cf4 100644
--- a/src/libcalamares/partition/PartitionIterator.h
+++ b/src/libcalamares/partition/PartitionIterator.h
@@ -18,6 +18,11 @@
  *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
  */
 
+/*
+ * NOTE: this functionality is only available when Calamares is compiled
+ *       with KPMcore support.
+ */
+
 #ifndef PARTITION_PARTITIONITERATOR_H
 #define PARTITION_PARTITIONITERATOR_H
 
diff --git a/src/libcalamares/partition/PartitionQuery.h b/src/libcalamares/partition/PartitionQuery.h
index db0a2d014..18eb7edd2 100644
--- a/src/libcalamares/partition/PartitionQuery.h
+++ b/src/libcalamares/partition/PartitionQuery.h
@@ -17,6 +17,12 @@
  *   You should have received a copy of the GNU General Public License
  *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
  */
+
+/*
+ * NOTE: this functionality is only available when Calamares is compiled
+ *       with KPMcore support.
+ */
+
 #ifndef PARTITION_PARTITIONQUERY_H
 #define PARTITION_PARTITIONQUERY_H