diff --git a/octave/liboctave/util/lo-regexp.cc b/octave/liboctave/util/lo-regexp.cc
index e2613e7..83d5f8d 100644
--- a/octave/liboctave/util/lo-regexp.cc
+++ b/octave/liboctave/util/lo-regexp.cc
@@ -31,10 +31,10 @@ along with Octave; see the file COPYING.  If not, see
 #include <string>
 #include <vector>
 
-#if defined (HAVE_PCRE_H)
-#  include <pcre.h>
-#elif defined (HAVE_PCRE_PCRE_H)
+#if defined (HAVE_PCRE_PCRE_H)
 #  include <pcre/pcre.h>
+#elif defined (HAVE_PCRE_H)
+#  include <pcre.h>
 #endif
 
 #include "Matrix.h"