diff --git a/src/libraries/System.Drawing.Common/src/System/Drawing/ClientUtils.cs b/src/libraries/System.Drawing.Common/src/System/Drawing/ClientUtils.cs
index 0bb94bd19b8ce..ec731f3ba858e 100644
--- a/src/libraries/System.Drawing.Common/src/System/Drawing/ClientUtils.cs
+++ b/src/libraries/System.Drawing.Common/src/System/Drawing/ClientUtils.cs
@@ -99,7 +99,7 @@ public override bool Equals(object? obj)
             {
                 if (!(obj is WeakRefCollection other))
                 {
-                    return true;
+                    return false;
                 }
 
                 if (other == null || Count != other.Count)