diff --git a/src/libraries/System.Runtime.Numerics/src/System/Numerics/BigInteger.cs b/src/libraries/System.Runtime.Numerics/src/System/Numerics/BigInteger.cs
index aa6389fcf94c8f..4f5c74ce8c0e16 100644
--- a/src/libraries/System.Runtime.Numerics/src/System/Numerics/BigInteger.cs
+++ b/src/libraries/System.Runtime.Numerics/src/System/Numerics/BigInteger.cs
@@ -918,12 +918,11 @@ public static BigInteger DivRem(BigInteger dividend, BigInteger divisor, out Big
             {
                 int size = dividend._bits.Length;
                 Span<nuint> quotient = RentedBuffer.Create(size, out RentedBuffer quotientBuffer);
+                using var _ = quotientBuffer;
 
                 // may throw DivideByZeroException
                 BigIntegerCalculator.Divide(dividend._bits, NumericsHelpers.Abs(divisor._sign), quotient, out nuint rest);
 
-                quotientBuffer.Dispose();
-
                 remainder = dividend._sign < 0 ? -(long)rest : (long)rest;
                 return new BigInteger(quotient, (dividend._sign < 0) ^ (divisor._sign < 0));
             }