diff --git a/tests/snippets/strings.py b/tests/snippets/strings.py
index 3ebec9b3d..77ebabaf0 100644
--- a/tests/snippets/strings.py
+++ b/tests/snippets/strings.py
@@ -36,3 +36,6 @@ b = '  hallo  '
 assert b.strip() == 'hallo'
 assert b.lstrip() == 'hallo  '
 assert b.rstrip() == '  hallo'
+
+c = 'hallo'
+assert c.capitalize() == 'Hallo'
diff --git a/vm/src/obj/objstr.rs b/vm/src/obj/objstr.rs
index 009a0d9c5..b3ecde4ff 100644
--- a/vm/src/obj/objstr.rs
+++ b/vm/src/obj/objstr.rs
@@ -18,6 +18,7 @@ pub fn init(context: &PyContext) {
     str_type.set_attr("__repr__", context.new_rustfunc(str_repr));
     str_type.set_attr("lower", context.new_rustfunc(str_lower));
     str_type.set_attr("upper", context.new_rustfunc(str_upper));
+    str_type.set_attr("capitalize", context.new_rustfunc(str_capitalize));
     str_type.set_attr("split", context.new_rustfunc(str_split));
     str_type.set_attr("strip", context.new_rustfunc(str_strip));
     str_type.set_attr("lstrip", context.new_rustfunc(str_lstrip));
@@ -141,6 +142,14 @@ fn str_lower(vm: &mut VirtualMachine, args: PyFuncArgs) -> PyResult {
     Ok(vm.ctx.new_str(value))
 }
 
+fn str_capitalize(vm: &mut VirtualMachine, args: PyFuncArgs) -> PyResult {
+    arg_check!(vm, args, required = [(s, Some(vm.ctx.str_type()))]);
+    let value = get_value(&s);
+    let (first_part, lower_str) = value.split_at(1);
+    let capitalized = format!("{}{}", first_part.to_uppercase().to_string(), lower_str);
+    Ok(vm.ctx.new_str(capitalized))
+}
+
 fn str_split(vm: &mut VirtualMachine, args: PyFuncArgs) -> PyResult {
     arg_check!(
         vm,