diff --git a/firmware/controllers/sensors/impl/software_knock.cpp b/firmware/controllers/sensors/impl/software_knock.cpp
index 816a83ef8e..24c54874e1 100644
--- a/firmware/controllers/sensors/impl/software_knock.cpp
+++ b/firmware/controllers/sensors/impl/software_knock.cpp
@@ -154,7 +154,7 @@ void initSoftwareKnock() {
 	}
 }
 
-void processLastKnockEvent() {
+static void processLastKnockEvent() {
 	if (!knockNeedsProcess) {
 		return;
 	}
diff --git a/firmware/controllers/sensors/impl/software_knock.h b/firmware/controllers/sensors/impl/software_knock.h
index 472798822d..da45e39074 100644
--- a/firmware/controllers/sensors/impl/software_knock.h
+++ b/firmware/controllers/sensors/impl/software_knock.h
@@ -5,4 +5,3 @@
 
 void initSoftwareKnock();
 void knockSamplingCallback(uint8_t cylinderIndex, efitick_t nowNt);
-void processLastKnockEvent();