diff --git a/src/libsodium/crypto_hash/sha256/cp/hash_sha256.c b/src/libsodium/crypto_hash/sha256/cp/hash_sha256.c
index 721bbe92..738794ac 100644
--- a/src/libsodium/crypto_hash/sha256/cp/hash_sha256.c
+++ b/src/libsodium/crypto_hash/sha256/cp/hash_sha256.c
@@ -245,9 +245,11 @@ crypto_hash_sha256_update(crypto_hash_sha256_state *state,
     bitlen[1] = ((uint32_t)inlen) << 3;
     bitlen[0] = (uint32_t)(inlen >> 29);
 
+    /* LCOV_EXCL_START */
     if ((state->count[1] += bitlen[1]) < bitlen[1]) {
         state->count[0]++;
     }
+    /* LCOV_EXCL_STOP */
     state->count[0] += bitlen[0];
 
     if (inlen < 64 - r) {
diff --git a/src/libsodium/crypto_hash/sha512/cp/hash_sha512.c b/src/libsodium/crypto_hash/sha512/cp/hash_sha512.c
index a7407709..e85be74b 100644
--- a/src/libsodium/crypto_hash/sha512/cp/hash_sha512.c
+++ b/src/libsodium/crypto_hash/sha512/cp/hash_sha512.c
@@ -272,9 +272,11 @@ crypto_hash_sha512_update(crypto_hash_sha512_state *state,
     bitlen[1] = ((uint64_t)inlen) << 3;
     bitlen[0] = ((uint64_t)inlen) >> 61;
 
+    /* LCOV_EXCL_START */
     if ((state->count[1] += bitlen[1]) < bitlen[1]) {
         state->count[0]++;
     }
+    /* LCOV_EXCL_STOP */
     state->count[0] += bitlen[0];
 
     if (inlen < 128 - r) {