diff --git a/src/remote/pv/codec.h b/src/remote/pv/codec.h
index 67da706..80adc5a 100644
--- a/src/remote/pv/codec.h
+++ b/src/remote/pv/codec.h
@@ -136,20 +136,20 @@ private:
 
 
 
-class epicsShareClass io_exception: public std::runtime_error {
+class io_exception: public std::runtime_error {
 public:
     explicit io_exception(const std::string &s): std::runtime_error(s) {}
 };
 
 
-class epicsShareClass invalid_data_stream_exception: public std::runtime_error {
+class invalid_data_stream_exception: public std::runtime_error {
 public:
     explicit invalid_data_stream_exception(
         const std::string &s): std::runtime_error(s) {}
 };
 
 
-class epicsShareClass connection_closed_exception: public std::runtime_error {
+class connection_closed_exception: public std::runtime_error {
 public:
     explicit connection_closed_exception(const std::string &s): std::runtime_error(s) {}
 };
diff --git a/src/remote/pv/security.h b/src/remote/pv/security.h
index efb925f..072c955 100644
--- a/src/remote/pv/security.h
+++ b/src/remote/pv/security.h
@@ -113,7 +113,7 @@ public:
 
 class SecurityPlugin;
 
-class epicsShareClass SecurityException: public std::runtime_error {
+class SecurityException: public std::runtime_error {
 public:
     explicit SecurityException(std::string const & what): std::runtime_error(what) {}
 };