diff --git a/public/app/features/dashboard/dashgrid/PanelHeader/PanelHeaderMenuTrigger.tsx b/public/app/features/dashboard/dashgrid/PanelHeader/PanelHeaderMenuTrigger.tsx
index 8a52e5cec03..ccd804e1b1a 100644
--- a/public/app/features/dashboard/dashgrid/PanelHeader/PanelHeaderMenuTrigger.tsx
+++ b/public/app/features/dashboard/dashgrid/PanelHeader/PanelHeaderMenuTrigger.tsx
@@ -40,13 +40,16 @@ export const PanelHeaderMenuTrigger: FC<Props> = ({ children, ...divProps }) =>
   );
 };
 
-function isClick(current: CartesianCoords2D, clicked: CartesianCoords2D): boolean {
-  return clicked.x === current.x && clicked.y === current.y;
+function isClick(current: CartesianCoords2D, clicked: CartesianCoords2D, deadZone = 3.5): boolean {
+  // A "deadzone" radius is added so that if the cursor is moved within this radius
+  // between mousedown and mouseup, it's still considered a click and not a drag.
+  const clickDistance = Math.sqrt((current.x - clicked.x) ** 2 + (current.y - clicked.y) ** 2);
+  return clickDistance <= deadZone;
 }
 
 function eventToClickCoordinates(event: MouseEvent<HTMLDivElement>): CartesianCoords2D {
   return {
-    x: Math.floor(event.clientX),
-    y: Math.floor(event.clientY),
+    x: event.clientX,
+    y: event.clientY,
   };
 }