diff --git a/core/source-files/source-files-docs.factor b/core/source-files/source-files-docs.factor
index cb1e5e6017..fc99b7afd1 100644
--- a/core/source-files/source-files-docs.factor
+++ b/core/source-files/source-files-docs.factor
@@ -39,7 +39,7 @@ HELP: source-file
 
 HELP: record-checksum
 { $values { "lines" "a sequence of strings" } { "source-file" source-file } }
-{ $description "Records the CRC32 checksm of the source file's contents." } 
+{ $description "Records the CRC32 checksum of the source file's contents." }
 $low-level-note ;
 
 HELP: reset-checksums