diff --git a/src/Val.cc b/src/Val.cc
index e072914afb..8c60f4c490 100644
--- a/src/Val.cc
+++ b/src/Val.cc
@@ -1171,23 +1171,6 @@ ListVal::~ListVal()
 	Unref(type);
 	}
 
-const char* ListVal::IncludedInString(const char* str) const
-	{
-	if ( tag != TYPE_STRING )
-		Internal("non-string list in ListVal::IncludedInString");
-
-	loop_over_list(vals, i)
-		{
-		const char* vs = (const char*) (vals[i]->AsString()->Bytes());
-
-		const char* embedded = strstr(str, vs);
-		if ( embedded )
-			return embedded;
-		}
-
-	return 0;
-	}
-
 RE_Matcher* ListVal::BuildRE() const
 	{
 	if ( tag != TYPE_STRING )
diff --git a/src/Val.h b/src/Val.h
index 33bd89c0d5..3d4141cd7a 100644
--- a/src/Val.h
+++ b/src/Val.h
@@ -669,13 +669,6 @@ public:
 	Val* Index(const int n)		{ return vals[n]; }
 	const Val* Index(const int n) const	{ return vals[n]; }
 
-	// Returns offset of where str includes one of the strings in this
-	// ListVal (which had better be a list of strings), nil if none.
-	//
-	// Assumes that all of the strings in the list are NUL-terminated
-	// and do not have any embedded NULs.
-	const char* IncludedInString(const char* str) const;
-
 	// Returns an RE_Matcher() that will match any string that
 	// includes embedded within it one of the patterns listed
 	// (as a string, e.g., "foo|bar") in this ListVal.