diff --git a/src/keybinds.h b/src/keybinds.h
index 2fa403f..c03a3fd 100644
--- a/src/keybinds.h
+++ b/src/keybinds.h
@@ -3,8 +3,8 @@
 #include "X11/keysym.h"
 #include "mesa/util/os_time.h"
 
-double elapsedF2, elapsedF12;
-uint64_t last_f2_press, last_f12_press;
+double elapsedF2, elapsedF12,  elapsedRefreshConfig;
+uint64_t last_f2_press, last_f12_press, refresh_config_press;
 pthread_t f2;
 char *displayid = getenv("DISPLAY");
 Display *dpy = XOpenDisplay(displayid);
diff --git a/src/overlay.cpp b/src/overlay.cpp
index 68b7ee4..78b00fc 100644
--- a/src/overlay.cpp
+++ b/src/overlay.cpp
@@ -870,6 +870,7 @@ static void snapshot_swapchain_frame(struct swapchain_data *data)
    double elapsed = (double)(now - data->last_fps_update); /* us */
    elapsedF2 = (double)(now - last_f2_press);
    elapsedF12 = (double)(now - last_f12_press);
+   elapsedRefreshConfig = (double)(now - refresh_config_press);
    fps = 1000000.0f * data->n_frames_since_update / elapsed;
 
    if (data->last_present_time) {
@@ -894,7 +895,7 @@ static void snapshot_swapchain_frame(struct swapchain_data *data)
 
      }
    }
-   
+
    if (elapsedF12 >= 500000){
       if (key_is_pressed(instance_data->params.toggle_hud)){
          instance_data->params.no_display = !instance_data->params.no_display;
@@ -902,6 +903,13 @@ static void snapshot_swapchain_frame(struct swapchain_data *data)
       }
    }
 
+   if (elapsedRefreshConfig >= 500000){
+      if (key_is_pressed(instance_data->params.refresh_config)){
+         parse_overlay_config(&instance_data->params, getenv("MANGOHUD_CONFIG"));
+         refresh_config_press = now;
+      }
+   }
+
    if (!sysInfoFetched) {
       ram =  exec("cat /proc/meminfo | grep 'MemTotal' | awk '{print $2}'");
       trim(ram);
diff --git a/src/overlay_params.cpp b/src/overlay_params.cpp
index 27f0a68..38d5aca 100644
--- a/src/overlay_params.cpp
+++ b/src/overlay_params.cpp
@@ -94,6 +94,12 @@ parse_toggle_logging(const char *str)
    return XStringToKeysym(str);
 }
 
+static KeySym
+parse_refresh_config(const char *str)
+{
+   return XStringToKeysym(str);
+}
+
 static uint32_t
 parse_fps_sampling_period(const char *str)
 {
@@ -263,6 +269,7 @@ parse_overlay_config(struct overlay_params *params,
    params->control = -1;
    params->toggle_hud = XK_F12;
    params->toggle_logging = XK_F2;
+   params->refresh_config = XK_F4;
    params->fps_limit = 0;
    params->vsync = -1;
    params->crosshair_size = 30;
diff --git a/src/overlay_params.h b/src/overlay_params.h
index c526239..facbc1c 100644
--- a/src/overlay_params.h
+++ b/src/overlay_params.h
@@ -62,6 +62,7 @@ extern "C" {
    OVERLAY_PARAM_CUSTOM(font_size)                   \
    OVERLAY_PARAM_CUSTOM(toggle_hud)                  \
    OVERLAY_PARAM_CUSTOM(toggle_logging)              \
+   OVERLAY_PARAM_CUSTOM(refresh_config)               \
    OVERLAY_PARAM_CUSTOM(crosshair_size)              \
    OVERLAY_PARAM_CUSTOM(offset_x)                    \
    OVERLAY_PARAM_CUSTOM(offset_y)                    \
@@ -106,6 +107,7 @@ struct overlay_params {
    float background_alpha;
    KeySym toggle_hud;
    KeySym toggle_logging;
+   KeySym refresh_config;
 };
 
 const extern char *overlay_param_names[];