diff --git a/cad/oregano/Makefile b/cad/oregano/Makefile
index 17c531bb4e30..ea0839db3d92 100644
--- a/cad/oregano/Makefile
+++ b/cad/oregano/Makefile
@@ -31,7 +31,7 @@ PLIST_SUB+=	NLS="@comment "
 .endif
 
 post-patch:
-	@${REINPLACE_CMD} -e "s|-Wall|${CFLAGS}|g" ${WRKSRC}/SConstruct
+	@${REINPLACE_CMD} -e "s|-Wall|${CFLAGS}|g;s|%%PREFIX%%|${PREFIX}|;s|pkg-config|${LOCALBASE}/bin/pkg-config|g" ${WRKSRC}/SConstruct
 .if defined(WITHOUT_NLS)
 	@${REINPLACE_CMD} -e "/^SConscript ('po\/SConscript')/d" ${WRKSRC}/SConstruct
 .endif
diff --git a/cad/oregano/files/patch-SConstruct b/cad/oregano/files/patch-SConstruct
index b4aa64e4d45b..8a93251add8a 100644
--- a/cad/oregano/files/patch-SConstruct
+++ b/cad/oregano/files/patch-SConstruct
@@ -5,7 +5,7 @@
  opts.Add (BoolOption ('RunUpdateMimeDatabase', 'Set to no if you don\'t want to run update-mime-database', 1));
  opts.Add (BoolOption ('Debug', 'Set to yes you want to compile with debug symbolse', 0));
 -opts.Add (PathOption ('PREFIX', 'System base prefix path', '/usr/local'));
-+opts.Add (PathOption ('PREFIX', 'System base prefix path', '/usr/local', PathOption.PathIsDirCreate));
++opts.Add (PathOption ('PREFIX', 'System base prefix path', '%%PREFIX%%', PathOption.PathIsDirCreate));
  opts.Add (PackageOption ('DESTDIR', 'System base installation path', '/'));
  
  # Dependencies #