diff --git a/src/libcalamares/partition/KPMTests.cpp b/src/libcalamares/partition/KPMTests.cpp
index c84d70c99..7468d3938 100644
--- a/src/libcalamares/partition/KPMTests.cpp
+++ b/src/libcalamares/partition/KPMTests.cpp
@@ -58,12 +58,17 @@ KPMTests::testFlagNames()
         f <<= 1;
     }
 
+    QCOMPARE( PartitionTable::flagName( static_cast< PartitionTable::Flag >( 1 ) ), QStringLiteral( "boot" ) );
+
 #ifdef WITH_KPMCORE4API
     // KPMCore 4 unifies the flags and handles them internally
+    QCOMPARE( PartitionTable::flagName( PartitionTable::Flag::Boot ), QStringLiteral( "boot" ) );
     QVERIFY( names.contains( QStringLiteral( "boot" ) ) );
     QVERIFY( !names.contains( QStringLiteral( "esp" ) ) );
 #else
     // KPMCore 3 has separate flags
+    QCOMPARE( PartitionTable::flagName( PartitionTable::FlagBoot ), QStringLiteral( "boot" ) );
+    QCOMPARE( PartitionTable::flagName( PartitionTable::FlagEsp ), QStringLiteral( "esp" ) );
     QVERIFY( names.contains( QStringLiteral( "boot" ) ) );
     QVERIFY( names.contains( QStringLiteral( "esp" ) ) );
 #endif