diff --git a/inc/Renderer.h b/inc/Renderer.h
index c3906ad..e2e65dd 100644
--- a/inc/Renderer.h
+++ b/inc/Renderer.h
@@ -1,6 +1,6 @@
 #pragma once
-#include "Filter.h"
 #include "ADSR.h"
+#include "Filter.h"
 #include "Synth.h"
 #include "SynthGuiState.h"
 #include "raylib.h"
@@ -21,7 +21,9 @@ class Renderer {
     void draw_adsr_panel(ADSR* adsr, ADSRGuiState& gui_adsr,
                          const Rectangle& panel_bounds, float panel_y_offset);
     void draw_second_panel(Rectangle& bounds);
-    float draw_filter_panel(Filter* filter, FilterGuiState& gui_filter, const Rectangle& panel_bounds);
+    float draw_filter_panel(Filter* filter, FilterGuiState& gui_filter,
+                            const Rectangle& panel_bounds);
+
   public:
     Renderer(/* args */);
     ~Renderer();
diff --git a/src/Renderer.cpp b/src/Renderer.cpp
index 1360e62..393d784 100644
--- a/src/Renderer.cpp
+++ b/src/Renderer.cpp
@@ -190,7 +190,8 @@ void Renderer::draw_second_panel(Rectangle& bounds) {
     GuiPanel(bounds, "");
 }
 
-float Renderer::draw_filter_panel(Filter* filter, FilterGuiState& gui_filter, const Rectangle& panel_bounds) {
+float Renderer::draw_filter_panel(Filter* filter, FilterGuiState& gui_filter,
+                                  const Rectangle& panel_bounds) {
     float panel_y_offset = 0;
 
     // Draw Filter Panel
@@ -211,11 +212,11 @@ float Renderer::draw_filter_panel(Filter* filter, FilterGuiState& gui_filter, co
                          .height = 25.f};
 
     // Frequency slider
-    float freq = gui_filter.freq;
+    float freq = log10f(gui_filter.freq);
     char freq_slider_label[32];
-    snprintf(freq_slider_label, 10, "%.1f hz", freq);
-    freq = GuiSlider(el_rect, freq_slider_label, "", freq, 0.0f, 16000.f);
-    gui_filter.freq = freq;
+    snprintf(freq_slider_label, 10, "%.1f hz", powf(10.f, freq));
+    freq = GuiSlider(el_rect, freq_slider_label, "", freq, 0.f, 4.f);
+    gui_filter.freq = powf(10.f, freq);
     el_rect.y += el_rect.height + el_spacing;
 
     // Resonance slider