1 files changed, 3 insertions, 3 deletions
diff --git a/qpid/cpp/src/qpid/sys/PollableCondition.h b/qpid/cpp/src/qpid/sys/PollableCondition.h
index 2eb6f2d947..3ba69b9da4 100644
--- a/qpid/cpp/src/qpid/sys/PollableCondition.h
+++ b/qpid/cpp/src/qpid/sys/PollableCondition.h
@@ -10,9 +10,9 @@
  * to you under the Apache License, Version 2.0 (the
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
- * 
+ *
  *   http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
@@ -33,7 +33,7 @@ namespace sys {
 
 class PollableConditionPrivate;
 
-class PollableCondition {
+class QPID_COMMON_CLASS_EXTERN PollableCondition {
 public:
     typedef boost::function1<void, PollableCondition&> Callback;