diff --git a/include/sqlext.h b/include/sqlext.h
index 51e76a5a856..6a707f8e162 100644
--- a/include/sqlext.h
+++ b/include/sqlext.h
@@ -22,6 +22,7 @@
 #define __SQLEXT_H
 
 #include <sql.h>
+#include <sqlucode.h>
 
 #ifdef __cplusplus
 extern "C" {