diff --git a/Sources/ComposableArchitecture/Reducer/Reducers/DebugReducer.swift b/Sources/ComposableArchitecture/Reducer/Reducers/DebugReducer.swift
index 2832533aa2d3..bcd83be89d0f 100644
--- a/Sources/ComposableArchitecture/Reducer/Reducers/DebugReducer.swift
+++ b/Sources/ComposableArchitecture/Reducer/Reducers/DebugReducer.swift
@@ -128,3 +128,5 @@ public struct _PrintChangesReducer<Base: Reducer>: Reducer {
     }
   #endif
 }
+
+extension _PrintChangesReducer: Sendable where Base: Sendable {}