diff --git a/changelog.md b/changelog.md
new file mode 100644
index 0000000..13ee8db
--- /dev/null
+++ b/changelog.md
@@ -0,0 +1,2 @@
+# 0.3.0.3
+Fixed wrong size of C structure in FFI that was causing a segfault.
diff --git a/json-stream.cabal b/json-stream.cabal
index d79da3a..24d28e0 100644
--- a/json-stream.cabal
+++ b/json-stream.cabal
@@ -1,5 +1,5 @@
 name:                json-stream
-version:             0.3.0.2
+version:             0.3.0.3
 synopsis:            Incremental applicative JSON parser
 description:         Easy to use JSON parser fully supporting incremental parsing.
                      Parsing grammar in applicative form.
@@ -20,7 +20,7 @@ maintainer:          palkovsky.ondrej@gmail.com
 category:            Text, JSON
 build-type:          Simple
 cabal-version:       >=1.10
-extra-source-files:  c_lib/lexer.h
+extra-source-files:  c_lib/lexer.h, changelog.md
 
 source-repository head
   type: git