diff --git a/src/fccfg.c b/src/fccfg.c
index 4a53581..890991f 100644
--- a/src/fccfg.c
+++ b/src/fccfg.c
@@ -2233,7 +2233,7 @@ FcConfigRealFilename (FcConfig		*config,
 
     if (n)
     {
-	FcChar8 buf[PATH_MAX];
+	FcChar8 buf[FC_PATH_MAX];
 	ssize_t len;
 
 	if (sysroot)