1 files changed, 2 insertions, 0 deletions
diff --git a/src/units.h b/src/units.h
index e8e181faf..85935fea6 100644
--- a/src/units.h
+++ b/src/units.h
@@ -30,6 +30,8 @@
 class Units final
 {
     public:
+        A_DELETE_COPY(Units);
+
         /**
         * Loads and parses the units.xml file (if found).
         */