diff --git a/ext/opencv/Makefile.am b/ext/opencv/Makefile.am
index e3427985bc..e9c2ad6a7c 100644
--- a/ext/opencv/Makefile.am
+++ b/ext/opencv/Makefile.am
@@ -6,7 +6,7 @@ libgstopencv_la_SOURCES = gstopencv.cpp \
 			gstopencvutils.c \
 			gstcvdilate.cpp \
 			gstcvdilateerode.cpp \
-			gstcvequalizehist.c \
+			gstcvequalizehist.cpp \
 			gstcverode.cpp \
 			gstcvlaplace.c \
 			gstcvsmooth.cpp \
diff --git a/ext/opencv/gstcvequalizehist.c b/ext/opencv/gstcvequalizehist.cpp
similarity index 99%
rename from ext/opencv/gstcvequalizehist.c
rename to ext/opencv/gstcvequalizehist.cpp
index 57d6ba82ed..0ea723f153 100644
--- a/ext/opencv/gstcvequalizehist.c
+++ b/ext/opencv/gstcvequalizehist.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