diff --git a/R/idiomclassification_mk_pf.R b/R/idiomclassification_mk_pf.R
index 473a577..47d4ef9 100644
--- a/R/idiomclassification_mk_pf.R
+++ b/R/idiomclassification_mk_pf.R
@@ -6,6 +6,8 @@
 # library(randomForestExplainer)
 # may need to: options(expressions = 5e5) to avoid stackoverflow for installing package
 
+set.seed(42)
+
 # Test
 
 ngramfile<-"gold03_anno_ml_synfeat_nstopw"