diff --git a/src/libraries/System.Runtime.Caching/tests/System.Runtime.Caching/MemoryCacheTest.cs b/src/libraries/System.Runtime.Caching/tests/System.Runtime.Caching/MemoryCacheTest.cs
index b1146987301016..d43d0abb6cc50d 100644
--- a/src/libraries/System.Runtime.Caching/tests/System.Runtime.Caching/MemoryCacheTest.cs
+++ b/src/libraries/System.Runtime.Caching/tests/System.Runtime.Caching/MemoryCacheTest.cs
@@ -988,8 +988,8 @@ public void Trim()
 
             Assert.Equal(numItems, mc.GetCount());
 
-            // Trimming 75% for such a small number of items (supposedly each in its cache store) will end up trimming all of them
-            long trimmed = mc.Trim(75);
+            // Trimming 76% for such a small number of items (supposedly each in its cache store) will end up trimming all of them
+            long trimmed = mc.Trim(76);
             Assert.Equal(numItems, trimmed);
             Assert.Equal(0, mc.GetCount());