diff --git a/src/ca/db_access.h b/src/ca/db_access.h
index e88a929d0..78f9365b2 100644
--- a/src/ca/db_access.h
+++ b/src/ca/db_access.h
@@ -535,7 +535,7 @@ epicsShareExtern const unsigned short dbr_size[LAST_BUFFER_TYPE+1];
 epicsShareExtern const unsigned short dbr_value_size[LAST_BUFFER_TYPE+1];
 
 /* class for each type's value */
-enum dbr_value_class { 
+epicsShareExtern enum dbr_value_class { 
 		dbr_class_int, 
 		dbr_class_float, 
 		dbr_class_string,