diff --git a/core/io/crc32/crc32.factor b/core/io/crc32/crc32.factor
index 1c0c2e9f5c..82af0cdb23 100644
--- a/core/io/crc32/crc32.factor
+++ b/core/io/crc32/crc32.factor
@@ -28,3 +28,8 @@ DEFER: crc32-table inline
     >r HEX: ffffffff dup r> [ (crc32) ] each bitxor ;
 
 : file-crc32 ( path -- n ) file-contents crc32 ;
+
+: lines-crc32 ( seq -- n )
+    HEX: ffffffff tuck [
+        [ (crc32) ] each CHAR: \n (crc32)
+    ] reduce bitxor ;
diff --git a/core/parser/parser.factor b/core/parser/parser.factor
index 235d0e935a..2579542af0 100644
--- a/core/parser/parser.factor
+++ b/core/parser/parser.factor
@@ -382,7 +382,7 @@ SYMBOL: parse-hook
         dup file set
         source-file-definitions clone old-definitions set
     ] [ drop ] if
-    contents \ contents set ;
+    lines \ lines set ;
 
 : smudged-usage-warning ( usages removed -- )
     parser-notes? [
@@ -426,7 +426,7 @@ SYMBOL: parse-hook
     file get dup [
         [ record-form ] keep
         [ record-modified ] keep
-        [ \ contents get record-checksum ] keep
+        [ \ lines get record-checksum ] keep
         record-definitions
         forget-smudged
     ] [
@@ -443,7 +443,7 @@ SYMBOL: parse-hook
     [
         [
             start-parsing
-            \ contents get string-lines parse-fresh
+            \ lines get parse-fresh
             dup finish-parsing
         ] [ ] [ undo-parsing ] cleanup
     ] no-parse-hook ;
diff --git a/core/source-files/source-files.factor b/core/source-files/source-files.factor
index 4df59e5dd9..f8fdc45fe9 100644
--- a/core/source-files/source-files.factor
+++ b/core/source-files/source-files.factor
@@ -33,8 +33,8 @@ uses definitions ;
     dup source-file-path ?resource-path file-modified
     swap set-source-file-modified ;
 
-: record-checksum ( source-file contents -- )
-    crc32 swap set-source-file-checksum ;
+: record-checksum ( source-file lines -- )
+    lines-crc32 swap set-source-file-checksum ;
 
 : (xref-source) ( source-file -- pathname uses )
     dup source-file-path <pathname> swap source-file-uses
@@ -63,7 +63,7 @@ uses definitions ;
 : reset-checksums ( -- )
     source-files get [
         swap ?resource-path dup exists?
-        [ file-contents record-checksum ] [ 2drop ] if
+        [ file-lines record-checksum ] [ 2drop ] if
     ] assoc-each ;
 
 M: pathname where pathname-string 1 2array ;
diff --git a/extra/benchmark/reverse-complement-test-in.txt b/extra/benchmark/reverse-complement/reverse-complement-test-in.txt
similarity index 100%
rename from extra/benchmark/reverse-complement-test-in.txt
rename to extra/benchmark/reverse-complement/reverse-complement-test-in.txt
diff --git a/extra/benchmark/reverse-complement-test-out.txt b/extra/benchmark/reverse-complement/reverse-complement-test-out.txt
similarity index 100%
rename from extra/benchmark/reverse-complement-test-out.txt
rename to extra/benchmark/reverse-complement/reverse-complement-test-out.txt
diff --git a/extra/benchmark/reverse-complement/reverse-complement.factor b/extra/benchmark/reverse-complement/reverse-complement.factor
index 4da3972e34..332489abed 100644
--- a/extra/benchmark/reverse-complement/reverse-complement.factor
+++ b/extra/benchmark/reverse-complement/reverse-complement.factor
@@ -37,9 +37,9 @@ HINTS: do-line vector string ;
     ] with-stream ;
 
 : reverse-complement-main ( -- )
-    "reverse-complement-in.txt"
-    "reverse-complement-out.txt"
-    [ home swap path+ ] 2apply
+    "extra/benchmark/reverse-complement/reverse-complement-test-in.txt"
+    "extra/benchmark/reverse-complement/reverse-complement-test-out.txt"
+    [ resource-path ] 2apply
     reverse-complement ;
 
 MAIN: reverse-complement-main