diff --git a/src/internal.c b/src/internal.c
index 8df8a3793..1aa36de28 100644
--- a/src/internal.c
+++ b/src/internal.c
@@ -5873,9 +5873,10 @@ int InitSSL(WOLFSSL* ssl, WOLFSSL_CTX* ctx, int writeDup)
     #endif
     #if defined(WOLFSSL_SCTP) || defined(WOLFSSL_DTLS_MTU)
         ssl->dtlsMtuSz                  = ctx->dtlsMtuSz;
-        /* Add 100 bytes so that we can operate with slight difference
+        /* Add some bytes so that we can operate with slight difference
          * in set MTU size on each peer */
-        ssl->dtls_expected_rx           = ssl->dtlsMtuSz + 100;
+        ssl->dtls_expected_rx           = ssl->dtlsMtuSz +
+                                            DTLS_MTU_ADDITIONAL_READ_BUFFER;
     #else
         ssl->dtls_expected_rx = MAX_MTU;
     #endif
diff --git a/src/ssl.c b/src/ssl.c
index 317b43947..43fff24c9 100644
--- a/src/ssl.c
+++ b/src/ssl.c
@@ -2066,14 +2066,16 @@ static int wolfSSL_read_internal(WOLFSSL* ssl, void* data, int sz, int peek)
 
 #ifdef WOLFSSL_DTLS
     if (ssl->options.dtls) {
-        ssl->dtls_expected_rx = max(sz + 100, MAX_MTU);
+        ssl->dtls_expected_rx = max(sz + DTLS_MTU_ADDITIONAL_READ_BUFFER,
+                MAX_MTU);
 #ifdef WOLFSSL_SCTP
         if (ssl->options.dtlsSctp)
 #endif
 #if defined(WOLFSSL_SCTP) || defined(WOLFSSL_DTLS_MTU)
-            /* Add 100 bytes so that we can operate with slight difference
+            /* Add some bytes so that we can operate with slight difference
              * in set MTU size on each peer */
-            ssl->dtls_expected_rx = max(ssl->dtls_expected_rx, ssl->dtlsMtuSz + 100);
+            ssl->dtls_expected_rx = max(ssl->dtls_expected_rx,
+                    ssl->dtlsMtuSz + DTLS_MTU_ADDITIONAL_READ_BUFFER);
 #endif
     }
 #endif
diff --git a/wolfssl/internal.h b/wolfssl/internal.h
index 1a456b65f..9b3870649 100644
--- a/wolfssl/internal.h
+++ b/wolfssl/internal.h
@@ -1353,6 +1353,9 @@ enum Misc {
     DTLS_EXPORT_SPC_SZ       = 16, /* amount of bytes used from CipherSpecs */
     DTLS_EXPORT_LEN          = 2,  /* 2 bytes for length and protocol */
     DTLS_EXPORT_IP           = 46, /* max ip size IPv4 mapped IPv6 */
+    DTLS_MTU_ADDITIONAL_READ_BUFFER = 100, /* Additional bytes to read so that
+                                            * we can work with a peer that has
+                                            * a slightly different MTU than us. */
     MAX_EXPORT_BUFFER        = 514, /* max size of buffer for exporting */
     MAX_EXPORT_STATE_BUFFER  = (DTLS_EXPORT_MIN_KEY_SZ) + (3 * DTLS_EXPORT_LEN),
                                     /* max size of buffer for exporting state */