a.rb

diff --git a/libinterp/corefcn/comment-list.h b/libinterp/corefcn/comment-list.h
index 2f2c4d5..18df774 100644
--- a/libinterp/corefcn/comment-list.h
+++ b/libinterp/corefcn/comment-list.h
@@ -25,7 +25,7 @@ along with Octave; see the file COPYING.  If not, see
 
 #include <string>
 
-#include <base-list.h>
+#include "base-list.h"
 
 extern std::string get_comment_text (void);
 
diff --git a/libinterp/corefcn/oct.h b/libinterp/corefcn/oct.h
index c6d21ad..db06357 100644
--- a/libinterp/corefcn/oct.h
+++ b/libinterp/corefcn/oct.h
@@ -28,7 +28,7 @@ along with Octave; see the file COPYING.  If not, see
 // config.h needs to be first because it includes #defines that can */
 // affect other header files.
 
-#include <config.h>
+#include "config.h"
 
 #include "Matrix.h"