diff --git a/README.md b/README.md
index 2349cac..39253b1 100644
--- a/README.md
+++ b/README.md
@@ -201,6 +201,11 @@ cctx.compress_end(mut sctx)!
 #### Compression
 
 ```v
+const (
+	compress_stream_out_size
+	compress_stream_in_size
+)
+
 new_compress_stream_context() &StreamContext
 (c &CompressContext) compress_chunk(
   mut sctx StreamContext, src []u8, last bool, drain fn (buf &u8, len int) !) !
@@ -211,6 +216,11 @@ new_compress_stream_context() &StreamContext
 #### Decompression
 
 ```v
+const (
+	decompress_stream_out_size
+	decompress_stream_in_size
+)
+
 new_decompress_stream_context() &StreamContext
 (d &DecompressContext) decompress_chunk(
   mut sctx StreamContext, src []u8, last bool, drain fn (buf &u8, len int) !) !
diff --git a/src/compress_stream.v b/src/compress_stream.v
index b4462ba..ef41dc6 100644
--- a/src/compress_stream.v
+++ b/src/compress_stream.v
@@ -1,6 +1,6 @@
 module zstd
 
-const (
+pub const (
 	compress_stream_out_size = int(C.ZSTD_CStreamOutSize())
 	compress_stream_in_size  = int(C.ZSTD_CStreamInSize())
 )
diff --git a/src/decompress_stream.v b/src/decompress_stream.v
index ce8ce0a..939be8f 100644
--- a/src/decompress_stream.v
+++ b/src/decompress_stream.v
@@ -1,6 +1,6 @@
 module zstd
 
-const (
+pub const (
 	decompress_stream_out_size = int(C.ZSTD_DStreamOutSize())
 	decompress_stream_in_size  = int(C.ZSTD_DStreamInSize())
 )