diff --git a/include/statistics/Accumulator.hpp b/include/xo/statistics/Accumulator.hpp
similarity index 100%
rename from include/statistics/Accumulator.hpp
rename to include/xo/statistics/Accumulator.hpp
diff --git a/include/statistics/Histogram.hpp b/include/xo/statistics/Histogram.hpp
similarity index 100%
rename from include/statistics/Histogram.hpp
rename to include/xo/statistics/Histogram.hpp
diff --git a/include/statistics/SampleStatistics.hpp b/include/xo/statistics/SampleStatistics.hpp
similarity index 100%
rename from include/statistics/SampleStatistics.hpp
rename to include/xo/statistics/SampleStatistics.hpp