diff --git a/src/third_party/wiredtiger/dist/s_style b/src/third_party/wiredtiger/dist/s_style
index 258eb0664e7..c9da192c9df 100755
--- a/src/third_party/wiredtiger/dist/s_style
+++ b/src/third_party/wiredtiger/dist/s_style
@@ -59,11 +59,11 @@ else
 
 	# Finding paired typos in the comments of different file types and excluding invalid edge cases.
 	if [ "${fname##*.}" = "py" ]; then
-		egrep '#.*\s\b([a-zA-Z]+)\s\b\1[[:space:]\.]' $f > $t
+		egrep '#.*[[:space:]]\b([a-zA-Z]+)[[:space:]]\b\1[[:space:]\.]' $f > $t
 	elif [ "${fname##*.}" = "c" ] || [ "${fname##*.}" = "h" ]; then
-		egrep '/?\*.*\s\b([a-zA-Z]+)\s\b\1[[:space:]\.]' $f | egrep -v -e "@" -e "long long" > $t
+		egrep '/?\*.*[[:space:]]\b([a-zA-Z]+)[[:space:]]\b\1[[:space:]\.]' $f | egrep -v -e "@" -e "long long" > $t
 	else
-		egrep '\s\b([a-zA-Z]+)\s\b\1[[:space:]\.]' $f | egrep -v -e "@" -e "^\(" > $t
+		egrep '[[:space:]]\b([a-zA-Z]+)[[:space:]]\b\1[[:space:]\.]' $f | egrep -v -e "@" -e "^\(" > $t
 	fi
 
 	test -s $t && {
diff --git a/src/third_party/wiredtiger/import.data b/src/third_party/wiredtiger/import.data
index 71fe95ab573..7c13da0231b 100644
--- a/src/third_party/wiredtiger/import.data
+++ b/src/third_party/wiredtiger/import.data
@@ -2,5 +2,5 @@
     "vendor": "wiredtiger",
     "github": "wiredtiger/wiredtiger.git",
     "branch": "mongodb-master",
-    "commit": "2c5dfec5090faaffdf2cc397ca7f9c0332466992"
+    "commit": "350fecbfc787cae88cb8b785a30780408fd78e1e"
 }