diff --git a/source/function_patcher.cpp b/source/function_patcher.cpp
index f3f8703..e09d92b 100644
--- a/source/function_patcher.cpp
+++ b/source/function_patcher.cpp
@@ -238,7 +238,7 @@ void FunctionPatcherRestoreFunctions(function_replacement_data_t *replacements,
 }
 
 bool isDynamicFunction(uint32_t physicalAddress) {
-    if ((physicalAddress & 0x80000000) == 0x80000000) {
+    if ((physicalAddress & 0x80000000) == 0x80000000 && (physicalAddress & 0xFF000000) != 0xFF000000) {
         return true;
     }
     return false;