diff --git a/lib/com_err/com_right.h b/lib/com_err/com_right.h
index fe99f8e78..f346029f2 100644
--- a/lib/com_err/com_right.h
+++ b/lib/com_err/com_right.h
@@ -10,4 +10,6 @@ struct error_table {
     struct error_table *next;
 };
 
+const char *com_right(struct error_table *list, long code);
+
 #endif /* __ERROR_H__ */
diff --git a/lib/com_err/error.h b/lib/com_err/error.h
index fe99f8e78..f346029f2 100644
--- a/lib/com_err/error.h
+++ b/lib/com_err/error.h
@@ -10,4 +10,6 @@ struct error_table {
     struct error_table *next;
 };
 
+const char *com_right(struct error_table *list, long code);
+
 #endif /* __ERROR_H__ */
diff --git a/lib/error/error.h b/lib/error/error.h
index fe99f8e78..f346029f2 100644
--- a/lib/error/error.h
+++ b/lib/error/error.h
@@ -10,4 +10,6 @@ struct error_table {
     struct error_table *next;
 };
 
+const char *com_right(struct error_table *list, long code);
+
 #endif /* __ERROR_H__ */