diff --git a/source/skyline/inlinehook/controlledpages.cpp b/source/skyline/inlinehook/controlledpages.cpp
index 309ff1f..b31ee95 100755
--- a/source/skyline/inlinehook/controlledpages.cpp
+++ b/source/skyline/inlinehook/controlledpages.cpp
@@ -157,7 +157,7 @@ namespace skyline::inlinehook {
         if(!isClaimed) {
             // get actual pages
             u64 alignedSrc = ALIGN_DOWN((u64)rx, PAGE_SIZE);
-            size_t alignedSize = ALIGN_UP(size, PAGE_SIZE);
+            size_t alignedSize = ALIGN_UP((u64)rx + size, PAGE_SIZE) - alignedSrc;
             
             // reserve space for rw pages
             u64 dst;
@@ -182,7 +182,7 @@ namespace skyline::inlinehook {
             // get actual pages
             u64 alignedSrc = ALIGN_DOWN((u64)rx, PAGE_SIZE);
             void* alignedDst = (void*) ALIGN_DOWN((u64)rw, PAGE_SIZE);
-            size_t alignedSize = ALIGN_UP(size, PAGE_SIZE);
+            size_t alignedSize = ALIGN_UP((u64)rx + size, PAGE_SIZE) - alignedSrc;
 
             // invalidate caches
             armDCacheFlush((void*)alignedDst, size);
@@ -197,4 +197,4 @@ namespace skyline::inlinehook {
 
         }
     }
-};
\ No newline at end of file
+};