diff --git a/Language/Functions/Characters/isPrintable.adoc b/Language/Functions/Characters/isPrintable.adoc
index 37c9add5d..0edc162ec 100644
--- a/Language/Functions/Characters/isPrintable.adoc
+++ b/Language/Functions/Characters/isPrintable.adoc
@@ -51,7 +51,7 @@ Analyse if a char is printable (that is any character that produces an output, e
 
 [source,arduino]
 ----
-if (isPrintable(this))      // tests if this is a letter
+if (isPrintable(this))      // tests if this is printable char
 {
 	Serial.println("The character is printable");
 }
@@ -80,4 +80,4 @@ else
 * #LANGUAGE# link:../../communication/serial/read[read()]
 
 --
-// SEE ALSO SECTION ENDS
\ No newline at end of file
+// SEE ALSO SECTION ENDS