diff --git a/src/echosms/resources/target definitions.toml b/src/echosms/resources/target definitions.toml
index 11dc968..67f37b5 100644
--- a/src/echosms/resources/target definitions.toml	
+++ b/src/echosms/resources/target definitions.toml	
@@ -22,7 +22,7 @@ diameter = "m"
 # between a parameter value and its' unit.
 [parameters]
 # These values are from Jech at al, 2015.
-medium_sound_speed = 1477.3  # The paper has 1477.4, but that appears to be a typo - 1477.3 gives TS that agrees best with the benchmark results in the paper.
+medium_sound_speed = 1477.3  # The paper has 1477.4 (e.g., in Table II), but 1477.3 gives TS that agrees best with the benchmark results in the paper.
 medium_density = 1026.8
 target_gas_density = 1.24
 target_gas_sound_speed = 345.0