diff --git a/src/system/kernel/vm/VMAnonymousCache.cpp b/src/system/kernel/vm/VMAnonymousCache.cpp
index 9b358abc58..b7874246d4 100644
--- a/src/system/kernel/vm/VMAnonymousCache.cpp
+++ b/src/system/kernel/vm/VMAnonymousCache.cpp
@@ -1036,7 +1036,7 @@ VMAnonymousCache::Merge(VMCache* _source)
 	committed_size += source->committed_size;
 	source->committed_size = 0;
 
-	off_t actualSize = virtual_end - virtual_base;
+	off_t actualSize = PAGE_ALIGN(virtual_end - virtual_base);
 	if (committed_size > actualSize)
 		_Commit(actualSize, VM_PRIORITY_USER);
 
diff --git a/src/system/kernel/vm/VMAnonymousNoSwapCache.cpp b/src/system/kernel/vm/VMAnonymousNoSwapCache.cpp
index 3d31a3d21e..4ad43e28c6 100644
--- a/src/system/kernel/vm/VMAnonymousNoSwapCache.cpp
+++ b/src/system/kernel/vm/VMAnonymousNoSwapCache.cpp
@@ -197,7 +197,7 @@ VMAnonymousNoSwapCache::Merge(VMCache* _source)
 	committed_size += source->committed_size;
 	source->committed_size = 0;
 
-	off_t actualSize = virtual_end - virtual_base;
+	off_t actualSize = PAGE_ALIGN(virtual_end - virtual_base);
 	if (committed_size > actualSize) {
 		vm_unreserve_memory(committed_size - actualSize);
 		committed_size = actualSize;