diff --git a/README.md b/README.md
index f5bf727..1578f4a 100644
--- a/README.md
+++ b/README.md
@@ -288,8 +288,8 @@ from math import cos, acos, sin, asin, tan, atan, degrees, radians
 ```python
 from math import log, log10, log2
 log(x[, base])  # Base e, if not specified.
-log10(x)        # Base 10
-log2(x)         # Base 2
+log10(x)        # Base 10.
+log2(x)         # Base 2.
 ```
 
 ### Infinity, nan