diff --git a/examples/playground.sb b/examples/playground.sb
index 998f24e..8cef15b 100644
--- a/examples/playground.sb
+++ b/examples/playground.sb
@@ -4,7 +4,8 @@ main :: () {
 
 fib :: (n) { 
     if n {
-        return n
+        let x = 1 + n
+        return x
     }
 
     return 1
diff --git a/src/generator/js.rs b/src/generator/js.rs
index 927f910..83a6c5a 100644
--- a/src/generator/js.rs
+++ b/src/generator/js.rs
@@ -41,7 +41,7 @@ fn generate_function(func: Function) -> String {
 fn generate_statement(statement: Statement) -> String {
     match statement {
         Statement::Return(ret) => generate_return(ret),
-        Statement::Declare(_, _) => todo!(),
+        Statement::Declare(name, val) => generate_declare(name.name, val),
         Statement::Exp(val) => generate_expression(val),
         Statement::If(expr, if_state, else_state) => {
             generate_conditional(expr, if_state, else_state.map(|x| *x))
@@ -78,6 +78,15 @@ fn generate_conditional(
     outcome
 }
 
+fn generate_declare(name: String, val: Option<Expression>) -> String {
+    // var is used here to not collide with scopes.
+    // TODO: Can let be used instead?
+    match val {
+        Some(expr) => format!("var {} = {};", name, generate_expression(expr)),
+        None => format!("var {};", name),
+    }
+}
+
 fn generate_function_call(func: String, args: Vec<Expression>) -> String {
     let formatted_args = args
         .into_iter()