diff --git a/app/routes/docs.client.samples.md b/app/routes/docs.client.samples.md
index e8a0daa76..531abd4d7 100644
--- a/app/routes/docs.client.samples.md
+++ b/app/routes/docs.client.samples.md
@@ -211,7 +211,7 @@ ra, dec = ah.healpix_to_lonlat(ipix, nside, order='nested')
 
 #### Probability Density at a Known Position
 
-Similarly, one can calculate the probability density at a known position
+Similarly, one can calculate the probability density at a known position:
 
 ```python
 ra, dec = 197.450341598 * u.deg, -23.3814675445 * u.deg