diff --git a/src/libvgcode/src/ViewerImpl.cpp b/src/libvgcode/src/ViewerImpl.cpp
index 35687913b5..12465c8884 100644
--- a/src/libvgcode/src/ViewerImpl.cpp
+++ b/src/libvgcode/src/ViewerImpl.cpp
@@ -1766,7 +1766,7 @@ void ViewerImpl::update_color_ranges()
                 m_volumetric_rate_range.update(round_to_bin(v.volumetric_rate()));
                 m_actual_volumetric_rate_range.update(round_to_bin(v.actual_volumetric_rate()));
             }
-            m_fan_speed_range.update(v.fan_speed);
+            m_fan_speed_range.update(round_to_bin(v.fan_speed));
             m_temperature_range.update(round_to_bin(v.temperature));
         }
         if ((v.is_travel() && m_settings.options_visibility.at(EOptionType::Travels)) ||