diff --git a/src/base58.h b/src/base58.h
index 08a40221e..fec9fd2c1 100644
--- a/src/base58.h
+++ b/src/base58.h
@@ -9,9 +9,9 @@
 // Why base-58 instead of standard base-64 encoding?
 // - Don't want 0OIl characters that look the same in some fonts and
 //      could be used to create visually identical looking account numbers.
-// - A string with non-luckynumeric characters is not as easily accepted as an account number.
+// - A string with non-alphanumeric characters is not as easily accepted as an account number.
 // - E-mail usually won't line-break if there's no punctuation to break at.
-// - Double-clicking selects the whole number as one word if it's all luckynumeric.
+// - Double-clicking selects the whole number as one word if it's all alphanumeric.
 //
 #ifndef BITCOIN_BASE58_H
 #define BITCOIN_BASE58_H