diff --git a/include/wx/db.h b/include/wx/db.h
index 190144804d..de294f32c9 100644
--- a/include/wx/db.h
+++ b/include/wx/db.h
@@ -224,7 +224,7 @@ typedef struct
 	short MaximumScale;
 } SqlTypeInfo;
 
-class CcolInf
+class WXDLLEXPORT CcolInf
 {
 public:
 	char tableName[DB_MAX_TABLE_NAME_LEN+1];
@@ -238,7 +238,7 @@ enum sqlLog
 	sqlLogON
 };
 
-class wxDB
+class WXDLLEXPORT wxDB
 {
 private:
 
diff --git a/include/wx/dbtable.h b/include/wx/dbtable.h
index fe52615bce..004f02a299 100644
--- a/include/wx/dbtable.h
+++ b/include/wx/dbtable.h
@@ -43,7 +43,7 @@ const int ROWID_LEN = 24;  // 18 is the max, 24 is in case it gets larger
 // source, exchange data between the data source and the C++
 // object, and so on.
 
-class CcolDef
+class WXDLLEXPORT CcolDef
 {
 public:
 	char    ColName[DB_MAX_COLUMN_NAME_LEN+1];	// Column Name  glt 4/19/97 added one for the null terminator
@@ -59,14 +59,14 @@ public:
 };  // CcolDef
 
 // This structure is used when creating secondary indexes.
-class CidxDef
+class WXDLLEXPORT CidxDef
 {
 public:
 	char ColName[DB_MAX_COLUMN_NAME_LEN+1];	// Column Name  glt 4/19/97 added one for the null terminator
 	bool Ascending;
 };  // CidxDef
 
-class wxTable
+class WXDLLEXPORT wxTable
 {
 private: