diff --git a/src/main/java/com/microsoft/sqlserver/jdbc/dtv.java b/src/main/java/com/microsoft/sqlserver/jdbc/dtv.java
index c836c031d..49e5abc54 100644
--- a/src/main/java/com/microsoft/sqlserver/jdbc/dtv.java
+++ b/src/main/java/com/microsoft/sqlserver/jdbc/dtv.java
@@ -1617,10 +1617,16 @@ final void executeOp(DTVExecuteOp op) throws SQLServerException {
             switch (javaType) {
                 case STRING:
                     if (JDBCType.GUID == jdbcType) {
-                        if (value instanceof String)
-                            value = UUID.fromString((String) value);
-                        byte[] bArray = Util.asGuidByteArray((UUID) value);
-                        op.execute(this, bArray);
+                        if (null != cryptoMeta) {
+                            if (value instanceof String) {
+                                value = UUID.fromString((String) value);
+                            }
+                            byte[] bArray = Util.asGuidByteArray((UUID) value);
+                            op.execute(this, bArray);
+                        }
+                        else {
+                            op.execute(this, String.valueOf(value));
+                        }
                     }
                     else if (jdbcType.SQL_VARIANT == jdbcType) {
                         op.execute(this, String.valueOf(value));
diff --git a/src/test/java/com/microsoft/sqlserver/jdbc/callablestatement/CallableStatementTest.java b/src/test/java/com/microsoft/sqlserver/jdbc/callablestatement/CallableStatementTest.java
new file mode 100644
index 000000000..da24e42d0
--- /dev/null
+++ b/src/test/java/com/microsoft/sqlserver/jdbc/callablestatement/CallableStatementTest.java
@@ -0,0 +1,108 @@
+package com.microsoft.sqlserver.jdbc.callablestatement;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.util.UUID;
+
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+import org.junit.platform.runner.JUnitPlatform;
+import org.junit.runner.RunWith;
+
+import com.microsoft.sqlserver.jdbc.SQLServerCallableStatement;
+import com.microsoft.sqlserver.testframework.AbstractTest;
+import com.microsoft.sqlserver.testframework.Utils;
+
+/**
+ * Test CallableStatement
+ */
+@RunWith(JUnitPlatform.class)
+public class CallableStatementTest extends AbstractTest {
+    private static String tableNameGUID = "uniqueidentifier_Table";
+    private static String outputProcedureNameGUID = "uniqueidentifier_SP";
+
+    private static Connection connection = null;
+    private static Statement stmt = null;
+
+    /**
+     * Setup before test
+     * 
+     * @throws SQLException
+     */
+    @BeforeAll
+    public static void setupTest() throws SQLException {
+        connection = DriverManager.getConnection(connectionString);
+        stmt = connection.createStatement();
+
+        Utils.dropTableIfExists(tableNameGUID, stmt);
+        Utils.dropProcedureIfExists(outputProcedureNameGUID, stmt);
+
+        createGUIDTable();
+        createGUIDStoredProcedure();
+    }
+
+    /**
+     * Tests CallableStatement.getString() with uniqueidentifier parameter
+     * 
+     * @throws SQLException
+     */
+    @Test
+    public void getStringGUIDTest() throws SQLException {
+
+        SQLServerCallableStatement callableStatement = null;
+        try {
+            String sql = "{call " + outputProcedureNameGUID + "(?)}";
+
+            callableStatement = (SQLServerCallableStatement) connection.prepareCall(sql);
+
+            UUID originalValue = UUID.randomUUID();
+
+            callableStatement.registerOutParameter(1, microsoft.sql.Types.GUID);
+            callableStatement.setObject(1, originalValue.toString(), microsoft.sql.Types.GUID);
+
+            callableStatement.execute();
+
+            String retrievedValue = callableStatement.getString(1);
+
+            assertEquals(originalValue.toString().toLowerCase(), retrievedValue.toLowerCase());
+
+        }
+        finally {
+            if (null != callableStatement) {
+                callableStatement.close();
+            }
+        }
+    }
+
+    /**
+     * Cleanup after test
+     * 
+     * @throws SQLException
+     */
+    @AfterAll
+    public static void cleanup() throws SQLException {
+        Utils.dropTableIfExists(tableNameGUID, stmt);
+        Utils.dropProcedureIfExists(outputProcedureNameGUID, stmt);
+        if (null != stmt) {
+            stmt.close();
+        }
+        if (null != connection) {
+            connection.close();
+        }
+    }
+
+    private static void createGUIDStoredProcedure() throws SQLException {
+        String sql = "CREATE PROCEDURE " + outputProcedureNameGUID + "(@p1 uniqueidentifier OUTPUT) AS SELECT @p1 = c1 FROM " + tableNameGUID + ";";
+        stmt.execute(sql);
+    }
+
+    private static void createGUIDTable() throws SQLException {
+        String sql = "CREATE TABLE " + tableNameGUID + " (c1 uniqueidentifier null)";
+        stmt.execute(sql);
+    }
+}