diff --git a/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/Unsafe.cs b/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/Unsafe.cs
index ef7a6fc4e84fd..3affb74f3783e 100644
--- a/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/Unsafe.cs
+++ b/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/Unsafe.cs
@@ -253,7 +253,7 @@ public static TTo BitCast<TFrom, TTo>(TFrom source)
             {
                 ThrowHelper.ThrowNotSupportedException();
             }
-            return As<TFrom, TTo>(ref source);
+            return ReadUnaligned<TTo>(ref As<TFrom, byte>(ref source));
         }
 
         /// <summary>