diff --git a/src/openrct2-ui/windows/StaffList.cpp b/src/openrct2-ui/windows/StaffList.cpp
index e220e3391b..e354a8027b 100644
--- a/src/openrct2-ui/windows/StaffList.cpp
+++ b/src/openrct2-ui/windows/StaffList.cpp
@@ -566,7 +566,7 @@ private:
 
             if (isPatrolAreaSet)
             {
-                if (!peep->HasPatrolArea() || peep->IsLocationInPatrol(footpathCoords))
+                if (!peep->HasPatrolArea() || !peep->IsLocationInPatrol(footpathCoords))
                 {
                     continue;
                 }