diff --git a/ext/opencv/Makefile.am b/ext/opencv/Makefile.am
index df1e8e43a4..b2b75f4186 100644
--- a/ext/opencv/Makefile.am
+++ b/ext/opencv/Makefile.am
@@ -4,7 +4,7 @@ plugin_LTLIBRARIES = libgstopencv.la
 libgstopencv_la_SOURCES = gstopencv.cpp \
 			gstopencvvideofilter.c \
 			gstopencvutils.c \
-			gstcvdilate.c \
+			gstcvdilate.cpp \
 			gstcvdilateerode.c \
 			gstcvequalizehist.c \
 			gstcverode.c \
diff --git a/ext/opencv/gstcvdilate.c b/ext/opencv/gstcvdilate.cpp
similarity index 99%
rename from ext/opencv/gstcvdilate.c
rename to ext/opencv/gstcvdilate.cpp
index da1de368e7..64cecc1240 100644
--- a/ext/opencv/gstcvdilate.c
+++ b/ext/opencv/gstcvdilate.cpp
@@ -1,7 +1,7 @@
 /*
  * GStreamer
  * Copyright (C) 2010 Thiago Santos <thiago.sousa.santos@collabora.co.uk>
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
  * to deal in the Software without restriction, including without limitation