diff --git a/apps/statistics/histogram_controller.cpp b/apps/statistics/histogram_controller.cpp
index cb302ce5b..b26b33c39 100644
--- a/apps/statistics/histogram_controller.cpp
+++ b/apps/statistics/histogram_controller.cpp
@@ -247,9 +247,14 @@ void HistogramController::initBarParameters() {
   assert(selectedSeriesIndex() >= 0 && m_store->sumOfOccurrences(selectedSeriesIndex()) > 0);
   preinitXRangeParameters();
   m_store->setFirstDrawnBarAbscissa(m_store->xMin());
-  float barWidth = m_store->xGridUnit();
-  if (barWidth <= 0.0f) {
-    barWidth = 1.0f;
+  double barWidth = m_store->xGridUnit();
+  if (barWidth <= 0.0) {
+    barWidth = 1.0;
+  } else {
+    // Truncate the bar width, as we convert from float to double
+    const double precision = 7; // TODO factorize? This is an experimental value, the same as in Expression;;Epsilon<float>()
+    const double logBarWidth = std::floor(std::log10(barWidth));
+    barWidth = ((int)(barWidth * std::pow(10.0, precision - logBarWidth))) * std::pow(10.0, -precision + logBarWidth);
   }
   m_store->setBarWidth(barWidth);
 }