diff --git a/src/template/lib.zig b/src/template/lib.zig
index 7f02a20..33b55d3 100644
--- a/src/template/lib.zig
+++ b/src/template/lib.zig
@@ -130,6 +130,11 @@ fn executeStatement(
         .@"switch" => |switch_stmt| {
             const expr = evaluateExpression(switch_stmt.expression, args, captures, context);
 
+            const exhaustive = switch_stmt.cases.len == std.meta.fields(@TypeOf(expr)).len;
+
+            if (exhaustive and switch_stmt.else_branch != null) @compileError("Unused else branch in switch");
+            if (!exhaustive and switch_stmt.else_branch == null) @compileError("Not all switch cases covered");
+
             var found = false;
             inline for (switch_stmt.cases) |case| {
                 if (std.meta.isTag(expr, case.header.tag)) {