diff --git a/src/iec_bus.cpp b/src/iec_bus.cpp
index 3d7627f..4917cbd 100644
--- a/src/iec_bus.cpp
+++ b/src/iec_bus.cpp
@@ -269,7 +269,7 @@ void IEC_Bus::ReadEmulationMode1581(void)
 	}
 	else
 	{
-		PI_SRQ = false;
+		PI_SRQ = true;
 	}
 
 	Resetting = !ignoreReset && ((gplev0 & PIGPIO_MASK_IN_RESET) == (invertIECInputs ? PIGPIO_MASK_IN_RESET : 0));
diff --git a/src/iec_bus.h b/src/iec_bus.h
index f723c6f..87fa7ff 100644
--- a/src/iec_bus.h
+++ b/src/iec_bus.h
@@ -488,7 +488,7 @@ public:
 			if (ClockSetToOut) set |= 1 << PIGPIO_OUT_CLOCK;
 			else clear |= 1 << PIGPIO_OUT_CLOCK;
 
-			if (!SRQSetToOut) set |= 1 << PIGPIO_OUT_SRQ;	// fast clock is pulled high but we have an inverter in our hardware so to compensate we invert in software now
+			if (SRQSetToOut) set |= 1 << PIGPIO_OUT_SRQ;	// fast clock is pulled high but we have an inverter in our hardware so to compensate we invert in software now
 			else clear |= 1 << PIGPIO_OUT_SRQ;
 
 			if (!invertIECOutputs) {