diff --git a/samples/gcc-graph b/samples/gcc-graph
index 3e76542..eeb5b1d 100644
--- a/samples/gcc-graph
+++ b/samples/gcc-graph
@@ -7,4 +7,4 @@ set key top left
 plot 'samples/gcc-samples.txt'    using 1:2 title 'unspecialized (-O0)' with lines, \
      'samples/gcc-samples-Os.txt' using 1:2 title 'unspecialized (-Os)' with lines, \
      'samples/gcc-samples.txt'    using 1:3 title 'specialized (-O0)' with lines, \
-     'samples/gcc-samples-Os.txt' using 1:3 title 'specialized (-O0)' with lines
+     'samples/gcc-samples-Os.txt' using 1:3 title 'specialized (-Os)' with lines