diff --git a/rowers/interactiveplots.py b/rowers/interactiveplots.py
index aacb2ab2..7e828b40 100644
--- a/rowers/interactiveplots.py
+++ b/rowers/interactiveplots.py
@@ -700,6 +700,8 @@ def leaflet_chart(lat,lon,name=""):
 
     df = df.replace(0,np.nan)
     df = df.loc[(df!=0).any(axis=1)]
+    df.fillna(method='bfill',axis=0,inplace=True)
+    df.fillna(method='ffill',axis=0,inplace=True)
     lat = df['lat']
     lon = df['lon']
     if lat.empty or lon.empty: