diff --git a/ext/gl/Makefile.am b/ext/gl/Makefile.am
index b1796f69cc..2d1376529d 100644
--- a/ext/gl/Makefile.am
+++ b/ext/gl/Makefile.am
@@ -47,11 +47,6 @@ OPENGL_SOURCES += \
 	gstglbumper.h \
 	gstgldifferencematte.c \
 	gstgldifferencematte.h
-if HAVE_JPEG
-OPENGL_SOURCES += \
-	gstgloverlay.c \
-	gstgloverlay.h
-endif
 endif
 endif
 
@@ -85,6 +80,14 @@ libgstopengl_la_SOURCES += \
 	gstgltransformation.h
 endif
 
+if HAVE_JPEG
+if HAVE_PNG
+libgstopengl_la_SOURCES += \
+	gstgloverlay.c \
+	gstgloverlay.h
+endif
+endif
+
 # check order of CFLAGS and LIBS, shouldn't the order be the other way around
 # (like in AM_CFLAGS)?
 libgstopengl_la_CFLAGS = \