diff --git a/ChangeLog b/ChangeLog
index 3828ad49..107ed857 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -15610,3 +15610,5 @@
 2017-02-26 Fred Gleason <fredg@paravelsystems.com>
 	* Modified 'ripcd/livewire_mcastgpio.cpp' to double-signal GPIO
 	events.
+2017-02-28 Fred Gleason <fredg@paravelsystems.com>
+	* Fixed a regression in 'lib/rdformpost.cpp'.
diff --git a/lib/rdformpost.cpp b/lib/rdformpost.cpp
index 0f5ec061..5a9cfb03 100644
--- a/lib/rdformpost.cpp
+++ b/lib/rdformpost.cpp
@@ -559,14 +559,14 @@ void RDFormPost::LoadMultipartEncoding(char first)
     }
     else {  // Read data
       if(filename.isEmpty()) {
-	QString str=post_values.at(name).toString();
+	QString str=post_values[name].toString();
 	str+=QString(data);
 	post_filenames[name]=false;
-	post_values.at(name)=str.simplifyWhiteSpace();
+	post_values[name]=str.simplifyWhiteSpace();
       }
       else {
 	post_filenames[name]=true;
-	post_values.at(name)=filename;
+	post_values[name]=filename;
 	write(fd,data,n);
       }
     }