diff --git a/kernel-src/include/kernel/vmm.h b/kernel-src/include/kernel/vmm.h
index 451f6284..3b5601c1 100644
--- a/kernel-src/include/kernel/vmm.h
+++ b/kernel-src/include/kernel/vmm.h
@@ -12,7 +12,7 @@
 #define VMM_FLAGS_EXACT   16
 #define VMM_FLAGS_SHARED  32
 
-#define VMM_PERMANENT_FLAGS_MASK (VMM_FLAGS_FILE | VMM_FLAGS_SHARED)
+#define VMM_PERMANENT_FLAGS_MASK (VMM_FLAGS_FILE | VMM_FLAGS_SHARED | VMM_FLAGS_PHYSICAL)
 
 #define VMM_ACTION_READ 1
 #define VMM_ACTION_WRITE 2
diff --git a/kernel-src/mm/vmm.c b/kernel-src/mm/vmm.c
index 2aecdcc6..7acf7dc1 100644
--- a/kernel-src/mm/vmm.c
+++ b/kernel-src/mm/vmm.c
@@ -243,9 +243,10 @@ static void destroyrange(vmmrange_t *range, uintmax_t _offset, size_t size, int
 				pmm_release(physical);
 			}
 		} else {
-			// anonymous or private non character device mapping
+			// anonymous, physical or private non character device mapping
 			arch_mmu_unmap(_cpu()->vmmctx->pagetable, vaddr);
-			pmm_release(physical);
+			if ((range->flags & VMM_FLAGS_PHYSICAL) == 0)
+				pmm_release(physical);
 		}
 	}