diff --git a/src/js/removeActiveSlave.js b/src/js/removeActiveSlave.js
index 73aa8b7662710c55a66dabd67bce1b20cb9a3c85..c93d9435f7e2d9602c5dd62ab5319fe1201382ed 100644
--- a/src/js/removeActiveSlave.js
+++ b/src/js/removeActiveSlave.js
@@ -344,7 +344,10 @@ window.removeNonNGPSlave = function removeNonNGPSlave(removedSlave) {
 			}
 			if (!keep) {
 				/* avoid going through this loop if possible */
-				keep = V.slaves.some(slave => { /* have we impregnated a slave that is not ourselves? */ return (slave.ID !== ID && isImpregnatedBy(slave, removedSlave)); });
+				keep = V.slaves.some(slave => {
+					/* have we impregnated a slave that is not ourselves? */
+					return (slave.ID !== ID && isImpregnatedBy(slave, removedSlave));
+				});
 			}
 			if (!keep) {
 				V.genePool.deleteAt(_geneIndex);