diff --git a/maidr/core/plot/heatmap.py b/maidr/core/plot/heatmap.py
index 88dbeee..465673f 100644
--- a/maidr/core/plot/heatmap.py
+++ b/maidr/core/plot/heatmap.py
@@ -21,7 +21,7 @@ class HeatPlot(
 ):
     def __init__(self, ax: Axes, **kwargs) -> None:
         self._fill_label = kwargs.pop("fill_label")
-        self._fmt = kwargs.pop("fmt", ".2f")
+        self._fmt = kwargs.pop("fmt")
         super().__init__(ax, PlotType.HEAT)
 
     def render(self) -> dict:
diff --git a/maidr/patch/heatmap.py b/maidr/patch/heatmap.py
index 9fde774..9a6f188 100644
--- a/maidr/patch/heatmap.py
+++ b/maidr/patch/heatmap.py
@@ -12,17 +12,14 @@
 def heat(wrapped, _, args, kwargs) -> Axes | AxesImage:
     # Check for additional label used by MAIDR heatmap.
     fill_label = kwargs.pop("fill_label", "Fill")
-
-    _fmt = ".2f"
-    if "fmt" in kwargs:
-        _fmt = kwargs.get("fmt")
+    fmt = kwargs.get("fmt", "")
 
     # Patch `ax.imshow()` and `seaborn.heatmap`.
     plot = wrapped(*args, **kwargs)
 
     # Extract the heatmap data points for MAIDR from the plots.
     ax = FigureManager.get_axes(plot)
-    FigureManager.create_maidr(ax, PlotType.HEAT, fill_label=fill_label, fmt=_fmt)
+    FigureManager.create_maidr(ax, PlotType.HEAT, fill_label=fill_label, fmt=fmt)
 
     # Return to the caller.
     return plot