diff --git a/lib/libc/glibc/sysdeps/x86_64/x32/sysdep.h b/lib/libc/glibc/sysdeps/x86_64/x32/sysdep.h
index 02036edd7d..39cb08b3cf 100644
--- a/lib/libc/glibc/sysdeps/x86_64/x32/sysdep.h
+++ b/lib/libc/glibc/sysdeps/x86_64/x32/sysdep.h
@@ -17,6 +17,7 @@
    <https://www.gnu.org/licenses/>.  */
 
 #include <sysdeps/x86_64/sysdep.h>
+#undef LP_SIZE
 #ifdef __ASSEMBLER__
 # define LP_SIZE 4
 #else