diff --git a/src/base/string_util.cc b/src/base/string_util.cc
index 72214a5c1b..1cfdc85dfa 100644
--- a/src/base/string_util.cc
+++ b/src/base/string_util.cc
@@ -37,7 +37,6 @@
 #include "config.h"
 #include "is_utf8.hh"
 #include "lnav_log.hh"
-#include "wcwidth9.h"
 
 void
 scrub_to_utf8(char* buffer, size_t length)
@@ -423,9 +422,3 @@ quote(string_fragment str)
 
 }  // namespace pcre2pp
 }  // namespace lnav
-
-int
-wcwidth(wchar_t wc)
-{
-    return wcwidth9(wc);
-}