diff --git a/src/utils/ucc_atomic.h b/src/utils/ucc_atomic.h
index 71eb12e233..d5aabd1829 100644
--- a/src/utils/ucc_atomic.h
+++ b/src/utils/ucc_atomic.h
@@ -16,7 +16,6 @@
 #define ucc_atomic_add64          ucs_atomic_add64
 #define ucc_atomic_sub64          ucs_atomic_sub64
 #define ucc_atomic_cswap8         ucs_atomic_cswap8
-#define ucc_atomic_cswap32        ucs_atomic_cswap32
 #define ucc_atomic_cswap64        ucs_atomic_cswap64
 #define ucc_atomic_bool_cswap8    ucs_atomic_bool_cswap8
 #define ucc_atomic_bool_cswap64   ucs_atomic_bool_cswap64