diff --git a/.gitattributes b/.gitattributes
index 2983afbfc3..581789817c 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,9 +1,9 @@
 *.zig text eol=lf
 *.txt text eol=lf
 langref.html.in text eol=lf
-deps/SoftFloat-3e/*.txt text eol=crlf
+lib/std/compress/testdata/** binary
+lib/std/compress/deflate/testdata/** binary
 
-deps/** linguist-vendored
 lib/include/** linguist-vendored
 lib/libc/** linguist-vendored
 lib/libcxx/** linguist-vendored
diff --git a/build.zig b/build.zig
index f2a7e48dc7..edcdfabfe0 100644
--- a/build.zig
+++ b/build.zig
@@ -106,7 +106,7 @@ pub fn build(b: *Builder) !void {
             .install_dir = .lib,
             .install_subdir = "zig",
             .exclude_extensions = &[_][]const u8{
-                // exclude files from lib/std/compress/
+                // exclude files from lib/std/compress/testdata
                 ".gz",
                 ".z.0",
                 ".z.9",
diff --git a/lib/std/compress/gzip.zig b/lib/std/compress/gzip.zig
index c3b2335a1a..d7a2cb0094 100644
--- a/lib/std/compress/gzip.zig
+++ b/lib/std/compress/gzip.zig
@@ -172,8 +172,8 @@ fn testReader(data: []const u8, comptime expected: []const u8) !void {
 // SHA256=164ef0897b4cbec63abf1b57f069f3599bd0fb7c72c2a4dee21bd7e03ec9af67
 test "compressed data" {
     try testReader(
-        @embedFile("rfc1952.txt.gz"),
-        @embedFile("rfc1952.txt"),
+        @embedFile("testdata/rfc1952.txt.gz"),
+        @embedFile("testdata/rfc1952.txt"),
     );
 }
 
diff --git a/lib/std/compress/rfc1951.txt b/lib/std/compress/testdata/rfc1951.txt
similarity index 100%
rename from lib/std/compress/rfc1951.txt
rename to lib/std/compress/testdata/rfc1951.txt
diff --git a/lib/std/compress/rfc1951.txt.fixed.z.9 b/lib/std/compress/testdata/rfc1951.txt.fixed.z.9
similarity index 100%
rename from lib/std/compress/rfc1951.txt.fixed.z.9
rename to lib/std/compress/testdata/rfc1951.txt.fixed.z.9
diff --git a/lib/std/compress/rfc1951.txt.z.0 b/lib/std/compress/testdata/rfc1951.txt.z.0
similarity index 100%
rename from lib/std/compress/rfc1951.txt.z.0
rename to lib/std/compress/testdata/rfc1951.txt.z.0
diff --git a/lib/std/compress/rfc1951.txt.z.9 b/lib/std/compress/testdata/rfc1951.txt.z.9
similarity index 100%
rename from lib/std/compress/rfc1951.txt.z.9
rename to lib/std/compress/testdata/rfc1951.txt.z.9
diff --git a/lib/std/compress/rfc1952.txt b/lib/std/compress/testdata/rfc1952.txt
similarity index 100%
rename from lib/std/compress/rfc1952.txt
rename to lib/std/compress/testdata/rfc1952.txt
diff --git a/lib/std/compress/rfc1952.txt.gz b/lib/std/compress/testdata/rfc1952.txt.gz
similarity index 100%
rename from lib/std/compress/rfc1952.txt.gz
rename to lib/std/compress/testdata/rfc1952.txt.gz
diff --git a/lib/std/compress/zlib.zig b/lib/std/compress/zlib.zig
index 500bb0bb5b..0fc96a5aa9 100644
--- a/lib/std/compress/zlib.zig
+++ b/lib/std/compress/zlib.zig
@@ -107,21 +107,21 @@ fn testReader(data: []const u8, expected: []const u8) !void {
 // https://tools.ietf.org/rfc/rfc1951.txt length=36944 bytes
 // SHA256=5ebf4b5b7fe1c3a0c0ab9aa3ac8c0f3853a7dc484905e76e03b0b0f301350009
 test "compressed data" {
-    const rfc1951_txt = @embedFile("rfc1951.txt");
+    const rfc1951_txt = @embedFile("testdata/rfc1951.txt");
 
     // Compressed with compression level = 0
     try testReader(
-        @embedFile("rfc1951.txt.z.0"),
+        @embedFile("testdata/rfc1951.txt.z.0"),
         rfc1951_txt,
     );
     // Compressed with compression level = 9
     try testReader(
-        @embedFile("rfc1951.txt.z.9"),
+        @embedFile("testdata/rfc1951.txt.z.9"),
         rfc1951_txt,
     );
     // Compressed with compression level = 9 and fixed Huffman codes
     try testReader(
-        @embedFile("rfc1951.txt.fixed.z.9"),
+        @embedFile("testdata/rfc1951.txt.fixed.z.9"),
         rfc1951_txt,
     );
 }