diff --git a/tests/api.c b/tests/api.c
index 4e5f6efed..8cebd4f8c 100644
--- a/tests/api.c
+++ b/tests/api.c
@@ -65256,6 +65256,50 @@ static int test_dtls_frag_ch_count_records(byte* b, int len)
 }
 #endif
 
+#if defined(HAVE_MANUAL_MEMIO_TESTS_DEPENDENCIES) && defined(WOLFSSL_DTLS13) \
+    && defined(WOLFSSL_DTLS_MTU) && defined(WOLFSSL_DTLS_CH_FRAG) \
+    && defined(HAVE_LIBOQS)
+static int test_dtls13_frag_ch_pq(void)
+{
+    EXPECT_DECLS;
+    WOLFSSL_CTX *ctx_c = NULL;
+    WOLFSSL_CTX *ctx_s = NULL;
+    WOLFSSL *ssl_c = NULL;
+    WOLFSSL *ssl_s = NULL;
+    struct test_memio_ctx test_ctx;
+    const char *test_str = "test";
+    int test_str_size;
+    byte buf[255];
+    static unsigned int DUMMY_MTU = 256;
+
+    XMEMSET(&test_ctx, 0, sizeof(test_ctx));
+    ExpectIntEQ(test_memio_setup(&test_ctx, &ctx_c, &ctx_s, &ssl_c, &ssl_s,
+        wolfDTLSv1_3_client_method, wolfDTLSv1_3_server_method), 0);
+wolfSSL_Debugging_ON();
+    /* Fragment msgs */
+    ExpectIntEQ(wolfSSL_dtls_set_mtu(ssl_c, DUMMY_MTU), WOLFSSL_SUCCESS);
+    ExpectIntEQ(wolfSSL_dtls_set_mtu(ssl_s, DUMMY_MTU), WOLFSSL_SUCCESS);
+    /* Add in a large post-quantum key share to make the CH long. */
+    ExpectIntEQ(wolfSSL_UseKeyShare(ssl_c, WOLFSSL_KYBER_LEVEL5), WOLFSSL_SUCCESS);
+    ExpectIntEQ(wolfSSL_dtls13_allow_ch_frag(ssl_s, 1), WOLFSSL_SUCCESS);
+    ExpectIntEQ(test_memio_do_handshake(ssl_c, ssl_s, 10, NULL), 0);
+    test_str_size = XSTRLEN("test") + 1;
+    ExpectIntEQ(wolfSSL_write(ssl_c, test_str, test_str_size), test_str_size);
+    ExpectIntEQ(wolfSSL_read(ssl_s, buf, sizeof(buf)), test_str_size);
+    ExpectIntEQ(XSTRCMP((char*)buf, test_str), 0);
+    ExpectIntEQ(wolfSSL_write(ssl_c, test_str, test_str_size), test_str_size);
+    wolfSSL_free(ssl_c);
+    wolfSSL_free(ssl_s);
+    wolfSSL_CTX_free(ctx_c);
+    wolfSSL_CTX_free(ctx_s);
+    return EXPECT_RESULT();
+}
+#else
+static int test_dtls13_frag_ch_pq(void)
+{
+    return TEST_SKIPPED;
+}
+#endif
 static int test_dtls_frag_ch(void)
 {
     EXPECT_DECLS;
@@ -66738,6 +66782,7 @@ TEST_CASE testCases[] = {
     TEST_DECL(test_certreq_sighash_algos),
     TEST_DECL(test_revoked_loaded_int_cert),
     TEST_DECL(test_dtls_frag_ch),
+    TEST_DECL(test_dtls13_frag_ch_pq),
     TEST_DECL(test_dtls_empty_keyshare_with_cookie),
     /* This test needs to stay at the end to clean up any caches allocated. */
     TEST_DECL(test_wolfSSL_Cleanup)