diff --git a/sources/conductorautonumerotation.cpp b/sources/conductorautonumerotation.cpp
index 547c3aa5c..2a2afaf3a 100644
--- a/sources/conductorautonumerotation.cpp
+++ b/sources/conductorautonumerotation.cpp
@@ -220,7 +220,7 @@ void ConductorAutoNumerotation::numeratePotential()
 */
 void ConductorAutoNumerotation::numerateNewConductor()
 {
-	if (m_conductor) {
+	if (!m_conductor) {
 		return;
 	}