diff --git a/doc/7-systems/msm6258.md b/doc/7-systems/msm6258.md
index b70f72394..a7b8a21fd 100644
--- a/doc/7-systems/msm6258.md
+++ b/doc/7-systems/msm6258.md
@@ -12,7 +12,7 @@ Furnace's implementation is MSM6258V, a CPU driven variant that is unlimited by
 
 MSM6258 is an extremely basic ADPCM sound codec. it has no variable frequency rate; it depends on clock rate of a chip itself. Furnace supports following rates:
 
-| Clock rate         | Sampling rate |
+| clock rate         | sampling rate |
 |--------------------|---------------|
 | 4 MHz              | 7812 Hz       |
 | 4.096 MHz          | 8000 Hz       |