diff --git a/src/util.zig b/src/util.zig
index 5de3159..5ec8329 100644
--- a/src/util.zig
+++ b/src/util.zig
@@ -142,7 +142,7 @@ pub fn gen_qtable(q: f16, step_start_band: usize, step_stop_band: usize) @Vector
     var ret: @Vector(64, f16) = [_]f32{0.0} ** 64;
     const band_range = step_stop_band - step_start_band;
     const q_max: usize = @intFromFloat(255 - 235 * q);
-    const q_min = 8;
+    const q_min: usize = @intFromFloat(58 - 50 * q);
     var step = (q_max - q_min) / band_range;
     var idx: usize = 0;
     for (0..16) |band_i| {