diff --git a/src/event/call-event.h b/src/event/call-event.h
index 0cbdb7f0f..044946fce 100644
--- a/src/event/call-event.h
+++ b/src/event/call-event.h
@@ -28,7 +28,7 @@ LINPHONE_BEGIN_NAMESPACE
 class Call;
 class CallEventPrivate;
 
-class CallEvent : public Event {
+class LINPHONE_PUBLIC CallEvent : public Event {
 public:
 	CallEvent (const Call &message);
 	CallEvent (const CallEvent &src);
diff --git a/src/event/event.h b/src/event/event.h
index e4724112c..31b019cab 100644
--- a/src/event/event.h
+++ b/src/event/event.h
@@ -27,7 +27,7 @@ LINPHONE_BEGIN_NAMESPACE
 
 class EventPrivate;
 
-class Event : public ClonableObject {
+class LINPHONE_PUBLIC Event : public ClonableObject {
 public:
 	enum Type {
 		None,
diff --git a/src/event/message-event.h b/src/event/message-event.h
index e3a3ac725..2c9d5174d 100644
--- a/src/event/message-event.h
+++ b/src/event/message-event.h
@@ -33,7 +33,7 @@ class ErrorInfo;
 class Message;
 class MessageEventPrivate;
 
-class MessageEvent : public Event {
+class LINPHONE_PUBLIC MessageEvent : public Event {
 public:
 	typedef std::pair<std::string, std::string> CustomHeader;
 
diff --git a/src/utils/utils.h b/src/utils/utils.h
index 799de2287..ceede0cda 100644
--- a/src/utils/utils.h
+++ b/src/utils/utils.h
@@ -29,15 +29,15 @@
 LINPHONE_BEGIN_NAMESPACE
 
 namespace Utils {
-  bool iequals (const std::string &a, const std::string &b);
+  LINPHONE_PUBLIC bool iequals (const std::string &a, const std::string &b);
 
-  std::vector<std::string> split (const std::string &str, const std::string &delimiter);
+  LINPHONE_PUBLIC std::vector<std::string> split (const std::string &str, const std::string &delimiter);
 
-  inline std::vector<std::string> split (const std::string &str, char delimiter) {
+  LINPHONE_PUBLIC inline std::vector<std::string> split (const std::string &str, char delimiter) {
     return split(str, std::string(1, delimiter));
   }
 
-  int stoi (const std::string &str, size_t *idx = 0, int base = 10);
+  LINPHONE_PUBLIC int stoi (const std::string &str, size_t *idx = 0, int base = 10);
 }
 
 LINPHONE_END_NAMESPACE