diff --git a/changelog/snippets/fix.7180.md b/changelog/snippets/fix.7180.md
new file mode 100644
index 0000000000..856b6987d2
--- /dev/null
+++ b/changelog/snippets/fix.7180.md
@@ -0,0 +1 @@
+- Re-add missing `DummyUnit` import to `defaultunits.lua` needed for mod compatibility (specifically BrewLAN Research & Daiquiris) (#7180)
diff --git a/lua/defaultunits.lua b/lua/defaultunits.lua
index 121a0a339f..74986d3218 100644
--- a/lua/defaultunits.lua
+++ b/lua/defaultunits.lua
@@ -55,6 +55,8 @@ ExternalFactoryUnit = import("/lua/sim/units/externalfactoryunit.lua").ExternalF
 -------------------------------------------------------------------------------
 --#region Backwards compatibility
 
+DummyUnit = import("/lua/sim/unit.lua").DummyUnit
+
 local Entity = import("/lua/sim/entity.lua").Entity
 local Unit = import("/lua/sim/unit.lua").Unit
 local explosion = import("/lua/defaultexplosions.lua")