diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9575353..378b0f2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Change Log
 
+## v2.1.1
+  * Noise Plethora
+    * Grit quantity knob behaviour updated to match production hardware version
+
 ## v2.1.0
   * Noise Plethora
     * Initial release
diff --git a/plugin.json b/plugin.json
index c34486f..439c0ac 100644
--- a/plugin.json
+++ b/plugin.json
@@ -1,6 +1,6 @@
 {
   "slug": "Befaco",
-  "version": "2.1.0",
+  "version": "2.1.1",
   "license": "GPL-3.0-or-later",
   "name": "Befaco",
   "brand": "Befaco",
@@ -222,6 +222,8 @@
       "slug": "Mex",
       "name": "Mex",
       "description": "Gate Expander for Befaco Muxlicer",
+      "manualUrl": "https://www.befaco.org/mex/",
+      "modularGridUrl": "https://www.modulargrid.net/e/befaco-mex",
       "tags": [
         "Expander",
         "Hardware clone"
@@ -231,6 +233,8 @@
       "slug": "NoisePlethora",
       "name": "Noise Plethora",
       "description": "Multitimbral noise monster",
+      "manualUrl": "https://www.befaco.org/noise-plethora/",
+      "modularGridUrl": "https://www.modulargrid.net/e/befaco-noise-plethora",
       "tags": [
         "Dual",
         "Filter",
diff --git a/src/NoisePlethora.cpp b/src/NoisePlethora.cpp
index e42e460..7b1d3bc 100644
--- a/src/NoisePlethora.cpp
+++ b/src/NoisePlethora.cpp
@@ -399,7 +399,7 @@ struct NoisePlethora : Module {
 	void processBottomSection(const ProcessArgs& args) {
 
 		float gritCv = rescale(clamp(inputs[GRIT_INPUT].getVoltage(), -10.f, 10.f), -10.f, 10.f, -1.f, 1.f);
-		float gritAmount = clamp(1.f - params[GRIT_PARAM].getValue() - gritCv, 0.f, 1.f);
+		float gritAmount = clamp(params[GRIT_PARAM].getValue() + gritCv, 0.f, 1.f);
 		float gritFrequency = 0.1 + std::pow(gritAmount, 2) * 20000;
 		gritNoiseSource.setDensity(gritFrequency);
 		float gritNoise = gritNoiseSource.process(args.sampleTime);