diff --git a/src/test/modules/test_json_parser/t/003_test_semantic.pl b/src/test/modules/test_json_parser/t/003_test_semantic.pl
index 74e0fa5bb1..2a430ad0c4 100644
--- a/src/test/modules/test_json_parser/t/003_test_semantic.pl
+++ b/src/test/modules/test_json_parser/t/003_test_semantic.pl
@@ -29,7 +29,9 @@ print $fh $stdout, "\n";
 
 close($fh);
 
-($stdout, $stderr) = run_command([ "diff", "-u", $fname, $test_out ]);
+my @diffopts = ("-u");
+push(@diffopts, "--strip-railing-cr") if $windows_os;
+($stdout, $stderr) = run_command([ "diff", @diffopts, $fname, $test_out ]);
 
 is($stdout, "", "no output diff");
 is($stderr, "", "no diff error");
diff --git a/src/test/modules/test_json_parser/test_json_parser_incremental.c b/src/test/modules/test_json_parser/test_json_parser_incremental.c
index f4c442ac36..47040e1e42 100644
--- a/src/test/modules/test_json_parser/test_json_parser_incremental.c
+++ b/src/test/modules/test_json_parser/test_json_parser_incremental.c
@@ -124,7 +124,7 @@ main(int argc, char **argv)
 	makeJsonLexContextIncremental(&lex, PG_UTF8, need_strings);
 	initStringInfo(&json);
 
-	if ((json_file = fopen(testfile, "r")) == NULL)
+	if ((json_file = fopen(testfile, PG_BINARY_R)) == NULL)
 		pg_fatal("error opening input: %m");
 
 	if (fstat(fileno(json_file), &statbuf) != 0)
diff --git a/src/test/modules/test_json_parser/test_json_parser_perf.c b/src/test/modules/test_json_parser/test_json_parser_perf.c
index ea85626cbd..74cc5f3f54 100644
--- a/src/test/modules/test_json_parser/test_json_parser_perf.c
+++ b/src/test/modules/test_json_parser/test_json_parser_perf.c
@@ -55,7 +55,7 @@ main(int argc, char **argv)
 
 	sscanf(argv[1], "%d", &iter);
 
-	if ((json_file = fopen(argv[2], "r")) == NULL)
+	if ((json_file = fopen(argv[2], PG_BINARY_R)) == NULL)
 		pg_fatal("Could not open input file '%s': %m", argv[2]);
 
 	while ((n_read = fread(buff, 1, 6000, json_file)) > 0)