diff --git a/frontend/logbook.ts b/frontend/logbook.ts
index ea4e194..e3c96b3 100644
--- a/frontend/logbook.ts
+++ b/frontend/logbook.ts
@@ -8,46 +8,48 @@ export interface Data {
 if(sessionStorage.getItem('userStats')) {
   const data = JSON.parse(sessionStorage.getItem('userStats') || '{}') as Data[];
 
-  const margin = { top: 20, right: 20, bottom: 50, left: 50 };
-  const width: number = 960 - margin.left - margin.right;
-  const height: number = 500 - margin.top - margin.bottom;
-  
-  data.forEach((d: Data) => {
-    d.date = <Date> new Date(d.date)
-    d.km = +d.km;
-  });
-  
-  const x = d3.scaleTime()
-    .domain(<[Date, Date]>d3.extent(data, (d: Data) => d.date))
-    .range([0, width]);
-  
-  const y = d3.scaleLinear()
-    .domain([0, Number(d3.max(data, (d: Data) => d.km))])
-    .range([height, 0]);
-  
-  const line = d3.line<Data>()
-    .x((d: Data) => x(d.date))
-    .y((d: Data) => y(d.km));
-  
-  const svg = d3.select('#container')
-    .append('svg')
-    .attr('width', width + margin.left + margin.right)
-    .attr('height', height + margin.top + margin.bottom)
-    .call(responsivefy)
-    .append('g')
-    .attr('transform', `translate(${margin.left},${margin.top})`);
-  
-  svg.append('path')
-    .data([data])
-    .attr('class', 'line')
-    .attr('d', line);
-  
-  svg.append('g')
-    .attr('transform', `translate(0,${height})`)
-    .call(d3.axisBottom(x));
-  
-  svg.append('g')
-    .call(d3.axisLeft(y));
+  if(data.length >= 2) {
+    const margin = { top: 20, right: 20, bottom: 50, left: 50 };
+    const width: number = 960 - margin.left - margin.right;
+    const height: number = 500 - margin.top - margin.bottom;
+    
+    data.forEach((d: Data) => {
+      d.date = <Date> new Date(d.date)
+      d.km = +d.km;
+    });
+    
+    const x = d3.scaleTime()
+      .domain(<[Date, Date]>d3.extent(data, (d: Data) => d.date))
+      .range([0, width]);
+    
+    const y = d3.scaleLinear()
+      .domain([0, Number(d3.max(data, (d: Data) => d.km))])
+      .range([height, 0]);
+    
+    const line = d3.line<Data>()
+      .x((d: Data) => x(d.date))
+      .y((d: Data) => y(d.km));
+    
+    const svg = d3.select('#container')
+      .append('svg')
+      .attr('width', width + margin.left + margin.right)
+      .attr('height', height + margin.top + margin.bottom)
+      .call(responsivefy)
+      .append('g')
+      .attr('transform', `translate(${margin.left},${margin.top})`);
+    
+    svg.append('path')
+      .data([data])
+      .attr('class', 'line')
+      .attr('d', line);
+    
+    svg.append('g')
+      .attr('transform', `translate(0,${height})`)
+      .call(d3.axisBottom(x));
+    
+    svg.append('g')
+      .call(d3.axisLeft(y));
+  }
 }