diff --git a/Makefile b/Makefile
index 562497c..a3f6939 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,16 @@
-all:
+all: mandel_quad mandel_mpfr mandel mandel_dd mandel_dd_aa
+
+mandel_quad: mandel_quad.c
 	gcc -O3 -Wall -lquadmath mandel_quad.c -o mandel_quad
+
+mandel_mpfr: mandel_mpfr.c
 	gcc -O3 -Wall -lmpfr -lm mandel_mpfr.c -o mandel_mpfr
+
+mandel: mandel.c
 	gcc -O3 -Wall -lm mandel.c -o mandel
+
+mandel_dd: mandel_dd.c
 	gcc -O3 -Wall -lm mandel_dd.c -o mandel_dd
+
+mandel_dd_aa: mandel_dd_aa.c
 	gcc -O3 -Wall -lm mandel_dd_aa.c -o mandel_dd_aa
diff --git a/README.md b/README.md
index 2ed85ce..6b5966f 100644
--- a/README.md
+++ b/README.md
@@ -64,7 +64,11 @@ execute a list of commands to create a zooming sequence of images.
 
 You can create a video of the resulting sequence using:
 
-	$ avconv -i %05d.png out.mp4
+	$ avconv -i out_%05d.png out.mp4
+
+Or a gif animation by using:
+
+	$ convert -delay 20 -loop 0 out_*.png out.gif
 
 Benchmark
 =========