diff --git a/src/libsync/creds/credentialscommon.h b/src/libsync/creds/credentialscommon.h
index 35ade4a3f..ac518d6e6 100644
--- a/src/libsync/creds/credentialscommon.h
+++ b/src/libsync/creds/credentialscommon.h
@@ -16,10 +16,12 @@
 #ifndef MIRALL_CREDS_COMMON_H
 #define MIRALL_CREDS_COMMON_H
 
+#include "owncloudlib.h"
+
 namespace OCC
 {
 
-int handleNeonSSLProblems(const char* prompt,
+OWNCLOUDSYNC_EXPORT int handleNeonSSLProblems(const char* prompt,
                           char* buf,
                           size_t len,
                           int echo,
diff --git a/src/libsync/creds/dummycredentials.h b/src/libsync/creds/dummycredentials.h
index bcc6654fb..315e696b5 100644
--- a/src/libsync/creds/dummycredentials.h
+++ b/src/libsync/creds/dummycredentials.h
@@ -19,7 +19,7 @@
 namespace OCC
 {
 
-class DummyCredentials : public AbstractCredentials
+class OWNCLOUDSYNC_EXPORT DummyCredentials : public AbstractCredentials
 {
     Q_OBJECT