diff --git a/R/enrichKEGG.R b/R/enrichKEGG.R
index cb4bacc..24c0f99 100644
--- a/R/enrichKEGG.R
+++ b/R/enrichKEGG.R
@@ -186,7 +186,7 @@ download.KEGG.Path <- function(species) {
 
     keggpathid2name.df <- kegg_list("pathway", species)
 
-    keggpathid2name.df[,2] <- sub("\\s-\\s[a-zA-Z ]+\\(\\w+\\)$", "", keggpathid2name.df[,2])
+    keggpathid2name.df[,2] <- sub("\\s-\\s[a-zA-Z ]+\\([a-zA-Z ]+\\)$", "", keggpathid2name.df[,2])
     # keggpathid2name.df[,1] %<>% gsub("path:map", species, .)
 
     ## if 'species="ko"', ko and map path are duplicated, only keep ko path.