diff --git a/include/engine/Port.hpp b/include/engine/Port.hpp
index 957e680..044a39e 100644
--- a/include/engine/Port.hpp
+++ b/include/engine/Port.hpp
@@ -124,6 +124,7 @@ struct Port {
 	/** Returns a pointer to the array of voltages beginning with firstChannel.
 	The pointer can be used for reading and writing.
 	*/
+	// TODO convert to const float* for zero-latency cable stuff and fix all plugins after
 	float* getVoltages(int firstChannel = 0) {
 		return &cvoltages[firstChannel];
 	}
diff --git a/src/override/Engine.cpp b/src/override/Engine.cpp
index d1f1b1e..8f52e5f 100644
--- a/src/override/Engine.cpp
+++ b/src/override/Engine.cpp
@@ -203,6 +203,11 @@ static void Engine_stepFrame(Engine* that) {
 	// Step each module
 	for (Module* module : internal->modules) {
 		module->doProcess(processArgs);
+		// FIXME remove this section below after all modules can use zero-latency cable stuff
+		for (Output& output : module->outputs) {
+			for (Cable* cable : output.cables)
+				Cable_step(cable);
+		}
 	}
 
 	++internal->frame;