diff --git a/src/ert/gui/tools/plot/plottery/plots/histogram.py b/src/ert/gui/tools/plot/plottery/plots/histogram.py
index 0eaa504c69f..1c250ffdfca 100644
--- a/src/ert/gui/tools/plot/plottery/plots/histogram.py
+++ b/src/ert/gui/tools/plot/plottery/plots/histogram.py
@@ -133,6 +133,9 @@ def plotHistogram(
                     ),
                 )
             else:
+                if minimum is not None and maximum is not None and minimum == maximum:
+                    minimum -= 0.1
+                    maximum += 0.1
                 config.addLegendItem(
                     ensemble.name,
                     _plotHistogram(