diff --git a/src/utils/transforms.lisp b/src/utils/transforms.lisp
index 0c6961d..d1b6f8d 100644
--- a/src/utils/transforms.lisp
+++ b/src/utils/transforms.lisp
@@ -96,7 +96,8 @@
                  sql-server-bit-to-boolean
                  varbinary-to-string
                  base64-decode
-		 hex-to-dec))
+		 hex-to-dec
+                 byte-vector-to-hexstring))
 
 
 ;;;
@@ -413,6 +414,32 @@
            ((string= "((1))" bit-string-or-integer) "t")
            (t nil)))))
 
+(defun byte-vector-to-hexstring (vector)
+  "Transform binary input received as a vector of bytes into a string of
+  hexadecimal digits, as per the following example:
+
+  Input:   #(136 194 152 47 66 138 70 183 183 27 33 6 24 174 22 88)
+  Output:  88C2982F428A46B7B71B210618AE1658"
+  (declare (type (or null string (simple-array (unsigned-byte 8) (*))) vector))
+  (etypecase vector
+    (null nil)
+    (string (if (string= "" vector)
+                nil
+                (error "byte-vector-to-bytea called on a string: ~s" vector)))
+    (simple-array
+     (let ((hex-digits "0123456789abcdef")
+           (bytea (make-array (* 2 (length vector))
+                              :initial-element #\0
+                              :element-type 'standard-char)))
+
+       (loop for pos from 0 by 2
+          for byte across vector
+          do (let ((high (ldb (byte 4 4) byte))
+                   (low  (ldb (byte 4 0) byte)))
+               (setf (aref bytea pos)       (aref hex-digits high))
+               (setf (aref bytea (+ pos 1)) (aref hex-digits low)))
+          finally (return bytea))))))
+
 (defun varbinary-to-string (string)
   (let ((babel::*default-character-encoding*
          (or qmynd::*mysql-encoding*
diff --git a/test/mysql/hex.sql b/test/mysql/hex.sql
new file mode 100644
index 0000000..cbd430c
--- /dev/null
+++ b/test/mysql/hex.sql
@@ -0,0 +1,25 @@
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `encryption_key_canary` (
+  `encrypted_value` blob,
+  `nonce` tinyblob,
+  `uuid` binary(16) NOT NULL,
+  `salt` tinyblob,
+  PRIMARY KEY (`uuid`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+/*!40101 SET character_set_client = @saved_cs_client */;
+
+--
+-- Dumping data for table `encryption_key_canary`
+--
+
+LOCK TABLES `encryption_key_canary` WRITE;
+/*!40000 ALTER TABLE `encryption_key_canary` DISABLE KEYS */;
+INSERT INTO `encryption_key_canary` VALUES (
+  0x1F36F183D7EE47C71453850B756945C16D9D711B2F0594E5D5E54D1EC94E081716AB8642AA60F84B50F69454D098122B7136A0DEB3AF200C2C5C7500BDFA0BD9689CCBF10A76972374882B304F7F15A227E815989FC87EEB72612396F569C662E72A2A7555E654605A3B83C1C753297832E52C5961E81EBC60DC43D929ABAB8CB14601DEFED121604CEB26210AB6D724,
+  0x044AA707DF17021E55E9A1E4,
+  0x88C2982F428A46B7B71B210618AE1658,
+  0xAE7F18028E7984FB5630F7D23FB77999C6CA7CF5355EF0194F3F16521EA7EC503F566229ED8DC5EFBBE9C12BA491BDDC939FE60FA31FB9AF123B2B4D5B7A61FE
+);
+/*!40000 ALTER TABLE `encryption_key_canary` ENABLE KEYS */;
+UNLOCK TABLES;
diff --git a/test/mysql/my.load b/test/mysql/my.load
index 158ed95..f0f308f 100644
--- a/test/mysql/my.load
+++ b/test/mysql/my.load
@@ -11,6 +11,8 @@ load database
  ALTER SCHEMA 'pgloader' RENAME TO 'mysql'
  ALTER TABLE NAMES MATCHING ~/./ SET TABLESPACE 'pg_default'
 
+ INCLUDING ONLY TABLE NAMES MATCHING 'encryption_key_canary'
+
  CAST column utilisateurs__Yvelines2013-06-28.sexe
           to text drop not null using empty-string-to-null,
 
@@ -31,6 +33,10 @@ load database
              using zero-dates-to-null,
 
       type timestamp with extra on update current timestamp
-        to "timestamp with time zone" drop extra
+        to "timestamp with time zone" drop extra,
 
- BEFORE LOAD DO $$ create schema if not exists mysql; $$;
+      column encryption_key_canary.uuid
+          to uuid drop typemod using byte-vector-to-hexstring
+
+ BEFORE LOAD DO
+   $$ create schema if not exists mysql; $$;
diff --git a/test/mysql/my.sql b/test/mysql/my.sql
index a9daefd..439ea83 100644
--- a/test/mysql/my.sql
+++ b/test/mysql/my.sql
@@ -118,6 +118,36 @@ CREATE TABLE `domain_filter` (
   KEY `domain_filter` (`type`)
 ) ENGINE=InnoDB DEFAULT CHARSET=ascii;
 
+/*
+ * https://github.com/dimitri/pgloader/issues/904
+ */
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `encryption_key_canary` (
+  `encrypted_value` blob,
+  `nonce` tinyblob,
+  `uuid` binary(16) NOT NULL,
+  `salt` tinyblob,
+  PRIMARY KEY (`uuid`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+/*!40101 SET character_set_client = @saved_cs_client */;
+
+--
+-- Dumping data for table `encryption_key_canary`
+--
+
+LOCK TABLES `encryption_key_canary` WRITE;
+/*!40000 ALTER TABLE `encryption_key_canary` DISABLE KEYS */;
+INSERT INTO `encryption_key_canary` VALUES (
+  0x1F36F183D7EE47C71453850B756945C16D9D711B2F0594E5D5E54D1EC94E081716AB8642AA60F84B50F69454D098122B7136A0DEB3AF200C2C5C7500BDFA0BD9689CCBF10A76972374882B304F7F15A227E815989FC87EEB72612396F569C662E72A2A7555E654605A3B83C1C753297832E52C5961E81EBC60DC43D929ABAB8CB14601DEFED121604CEB26210AB6D724,
+  0x044AA707DF17021E55E9A1E4,
+  0x88C2982F428A46B7B71B210618AE1658,
+  0xAE7F18028E7984FB5630F7D23FB77999C6CA7CF5355EF0194F3F16521EA7EC503F566229ED8DC5EFBBE9C12BA491BDDC939FE60FA31FB9AF123B2B4D5B7A61FE
+);
+/*!40000 ALTER TABLE `encryption_key_canary` ENABLE KEYS */;
+UNLOCK TABLES;
+
+
 /*
  * https://github.com/dimitri/pgloader/issues/703
  */