diff --git a/libs/ui/Region.cpp b/libs/ui/Region.cpp
index a3558bd..f7087a9 100644
--- a/libs/ui/Region.cpp
+++ b/libs/ui/Region.cpp
@@ -489,7 +489,8 @@
                     merge = false;
                     break;
                 }
-                p++, q++;
+                p++;
+                q++;
             }
         }
     }