diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7f508e6..86a1383 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com),
 and this project adheres to [Semantic Versioning](https://semver.org).
 
+## Unreleased
+
+## 0.1.1 - 2024-06-03
+
+- small description change
+
 ## 0.1.0 - 2024-06-03
 
 - first public version
diff --git a/Cargo.toml b/Cargo.toml
index 70863d0..9a0fc9d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,7 +4,7 @@ version = "0.1.1"
 authors = ["Werner Braun <wbcat@braun-echle.de>"]
 edition = "2021"
 #rust-version = "1.78"
-description = "Derive macros map struct/field to SQLite table/column. Generate const/fn for create-table,insert,select,update."
+description = "Derive map of struct/field to SQLite table/column. Generate const/fn for create-table, insert, select, update."
 repository = "https://github.com/wbcat/wb_sqlite"
 license = "MIT OR Apache-2.0"
 keywords = ["derive", "sqlite", "database", "orm"]
diff --git a/src/create_table.rs b/src/create_table.rs
index 4a15379..f35c7fb 100644
--- a/src/create_table.rs
+++ b/src/create_table.rs
@@ -49,7 +49,7 @@ fn gen_struct(
 		col_defs.push_str(&ident.to_string());
 		col_defs.push(' ');
 		if col_attr.typ.is_empty() {
-			col_defs.push_str(crate::col_typ(&uf.type_string()));
+			col_defs.push_str(crate::util::col_typ(&uf.type_string()));
 		} else {
 			col_defs.push_str(&col_attr.typ);
 		}
diff --git a/src/create_table_log.rs b/src/create_table_log.rs
index 920873f..2b753c4 100644
--- a/src/create_table_log.rs
+++ b/src/create_table_log.rs
@@ -46,7 +46,7 @@ fn gen_struct(
 		log_values.push_str(&col_name);
 		col_defs.push(' ');
 		if col_attr.typ.is_empty() {
-			col_defs.push_str(crate::col_typ(&uf.type_string()));
+			col_defs.push_str(crate::util::col_typ(&uf.type_string()));
 		} else {
 			col_defs.push_str(&col_attr.typ);
 		}
diff --git a/src/lib.rs b/src/lib.rs
index 485873f..1054f65 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -169,22 +169,6 @@ pub fn create_table(input: TokenStream) -> TokenStream {
 	create_table::inner(input).unwrap_or_else(|e| e.into_token_stream())
 }
 
-// Get SQLite column datatype from given rust type-string.
-fn col_typ(rust_typ: &str) -> &'static str {
-	match rust_typ {
-		"bool" | "u8" | "u16" | "u32" | "i8" | "i16" | "i32" | "i64" => "INTEGER NOT NULL",
-		"f32" | "f64" => "REAL NOT NULL",
-		"&str" | "String" => "TEXT NOT NULL",
-		"&[u8]" | "Vec<u8>" => "BLOB NOT NULL",
-		"Option<bool>" | "Option<u8>" | "Option<u16>" | "Option<u32>" | "Option<i8>"
-		| "Option<i16>" | "Option<i32>" | "Option<i64>" => "INTEGER",
-		"Option<f32>" | "Option<f64>" => "REAL",
-		"Option<String>" => "TEXT",
-		"Option<Vec<u8>>" => "BLOB",
-		_ => "ANY",
-	}
-}
-
 /// const CREATE_TABLE_LOG_SQL: &'static str = "CREATE ..."
 ///
 /// Create logging-table + trigger to log all table row modifications to the logging-table.
diff --git a/src/util.rs b/src/util.rs
index 99c4060..3c608fb 100644
--- a/src/util.rs
+++ b/src/util.rs
@@ -18,6 +18,22 @@ pub fn tab_name(ident: &str) -> String {
 		.to_case(Case::Snake)
 }
 
+/// Get SQLite column datatype from given rust type-string.
+pub fn col_typ(rust_typ: &str) -> &'static str {
+	match rust_typ {
+		"bool" | "u8" | "u16" | "u32" | "i8" | "i16" | "i32" | "i64" => "INTEGER NOT NULL",
+		"f32" | "f64" => "REAL NOT NULL",
+		"&str" | "String" => "TEXT NOT NULL",
+		"&[u8]" | "Vec<u8>" => "BLOB NOT NULL",
+		"Option<bool>" | "Option<u8>" | "Option<u16>" | "Option<u32>" | "Option<i8>"
+		| "Option<i16>" | "Option<i32>" | "Option<i64>" => "INTEGER",
+		"Option<f32>" | "Option<f64>" => "REAL",
+		"Option<String>" => "TEXT",
+		"Option<Vec<u8>>" => "BLOB",
+		_ => "ANY",
+	}
+}
+
 #[derive(Debug, Default)]
 pub struct TabAttr {
 	pub constraint: String, // table-constraint(s)