diff --git a/SystemTools.cxx b/SystemTools.cxx
index 6ea396cbdde160778c9f004f4c3f3a2442b16525..0c11b866613af382252bf356fc61e76e7e05e11f 100644
--- a/SystemTools.cxx
+++ b/SystemTools.cxx
@@ -3379,7 +3379,7 @@ bool SystemTools::LocateFileInDir(const char *filename,
       }
     temp += filename_base;
 
-    if (SystemTools::FileExists(filename_found.c_str()))
+    if (SystemTools::FileExists(temp.c_str()))
       {
       res = true;
       filename_found = temp;