diff --git a/src/sfizz/effects/gen/compressor.cxx b/src/sfizz/effects/gen/compressor.cxx
index 6634dab0..ba19b870 100644
--- a/src/sfizz/effects/gen/compressor.cxx
+++ b/src/sfizz/effects/gen/compressor.cxx
@@ -82,6 +82,7 @@ class faustCompressor {
 	}
 
 	static void classInit(int sample_rate) {
+		(void)sample_rate;
 	}
 
 	void instanceConstants(int sample_rate) {
diff --git a/src/sfizz/effects/gen/disto_stage.cxx b/src/sfizz/effects/gen/disto_stage.cxx
index 7353b7ed..e630bd68 100644
--- a/src/sfizz/effects/gen/disto_stage.cxx
+++ b/src/sfizz/effects/gen/disto_stage.cxx
@@ -55,6 +55,7 @@ class faustDistoSIG0 {
 	}
 
 	void instanceInitfaustDistoSIG0(int sample_rate) {
+		(void)sample_rate;
 		for (int l3 = 0; (l3 < 2); l3 = (l3 + 1)) {
 			iRec3[l3] = 0;
 		}
diff --git a/src/sfizz/effects/gen/fverb.cxx b/src/sfizz/effects/gen/fverb.cxx
index 07a742d8..849c2485 100644
--- a/src/sfizz/effects/gen/fverb.cxx
+++ b/src/sfizz/effects/gen/fverb.cxx
@@ -58,6 +58,7 @@ class faustFverbSIG0 {
 	}
 
 	void instanceInitfaustFverbSIG0(int sample_rate) {
+		(void)sample_rate;
 		for (int l4 = 0; (l4 < 2); l4 = (l4 + 1)) {
 			iRec19[l4] = 0;
 		}
diff --git a/src/sfizz/effects/gen/gate.cxx b/src/sfizz/effects/gen/gate.cxx
index 099eb3c5..93da987b 100644
--- a/src/sfizz/effects/gen/gate.cxx
+++ b/src/sfizz/effects/gen/gate.cxx
@@ -85,6 +85,7 @@ class faustGate {
 	}
 
 	static void classInit(int sample_rate) {
+		(void)sample_rate;
 	}
 
 	void instanceConstants(int sample_rate) {