diff --git a/syntaxes/prolog.swi.tmLanguage.json b/syntaxes/prolog.swi.tmLanguage.json
index 0f2a70e..5a23308 100644
--- a/syntaxes/prolog.swi.tmLanguage.json
+++ b/syntaxes/prolog.swi.tmLanguage.json
@@ -232,6 +232,10 @@
         {
           "name": "string.quoted.double.prolog",
           "match": "\".*?\""
+        },
+        {
+          "name": "string.quoted.back.prolog",
+          "match": "`.*?`"
         }
       ]
     },
diff --git a/syntaxes/prolog.swi.tmLanguage.yaml b/syntaxes/prolog.swi.tmLanguage.yaml
index 4c601f2..aca19b5 100755
--- a/syntaxes/prolog.swi.tmLanguage.yaml
+++ b/syntaxes/prolog.swi.tmLanguage.yaml
@@ -155,6 +155,9 @@ repository:
       -
         name: string.quoted.double.prolog
         match: '".*?"'
+      -
+        name: string.quoted.back.prolog
+        match: "`.*?`"
   controlandkeywords:
     patterns:
       -