diff --git a/src/sys/mm/pmm.c b/src/sys/mm/pmm.c
index cd04139d..77592b64 100644
--- a/src/sys/mm/pmm.c
+++ b/src/sys/mm/pmm.c
@@ -132,6 +132,9 @@ void* pmm_alloc(size_t count){
 
 
 	spinlock_release(&lock);
+	
+	if(count == 1)
+		lastfree = addr;
 
 	return addr;