diff --git a/libluna/src/CString.cpp b/libluna/src/CString.cpp
index 84a1f379..249bd774 100644
--- a/libluna/src/CString.cpp
+++ b/libluna/src/CString.cpp
@@ -51,7 +51,7 @@ extern "C"
     {
         if (dest == src) return dest;
         if (dest > src)
-            for (long i = (long)n - 1; i >= 0; i++) { *((u8*)dest + i) = *((const u8*)src + i); }
+            for (long i = (long)n - 1; i >= 0; i--) { *((u8*)dest + i) = *((const u8*)src + i); }
         else
             for (long i = 0; i < (long)n; i++) { *((u8*)dest + i) = *((const u8*)src + i); }
         return dest;