diff --git a/test/sanitizer_suppressions/ubsan b/test/sanitizer_suppressions/ubsan
index d55119b26..643272de5 100644
--- a/test/sanitizer_suppressions/ubsan
+++ b/test/sanitizer_suppressions/ubsan
@@ -15,6 +15,7 @@ unsigned-integer-overflow:coded_stream.h
 unsigned-integer-overflow:core_write.cpp
 unsigned-integer-overflow:crypto/chacha20.cpp
 unsigned-integer-overflow:crypto/ctaes/ctaes.c
+unsigned-integer-overflow:crypto/poly1305.cpp
 unsigned-integer-overflow:crypto/ripemd160.cpp
 unsigned-integer-overflow:crypto/sha1.cpp
 unsigned-integer-overflow:crypto/sha256.cpp