diff --git a/libc/utils/MPFRWrapper/MPFRUtils.cpp b/libc/utils/MPFRWrapper/MPFRUtils.cpp
index 60e4abadb5e3c..5afc3d007d4d7 100644
--- a/libc/utils/MPFRWrapper/MPFRUtils.cpp
+++ b/libc/utils/MPFRWrapper/MPFRUtils.cpp
@@ -262,6 +262,7 @@ class MPFRNumber {
 
       int d = mpz_tstbit(integer, 0);
       mpfr_set_si(result.value, d ? -1 : 1, mpfr_rounding);
+      mpz_clear(integer);
       return result;
     }