diff --git a/Foundation/include/Poco/Config.h b/Foundation/include/Poco/Config.h
index 978efafb2..1973ca20e 100644
--- a/Foundation/include/Poco/Config.h
+++ b/Foundation/include/Poco/Config.h
@@ -120,6 +120,12 @@
 // #define POCO_UTIL_NO_INIFILECONFIGURATION
 
 
+// No support for JSON configuration in 
+// Poco::Util::Application. Avoids linking of JSON
+// library and saves a few 100 Kbytes.
+// #define POCO_UTIL_NO_JSONCONFIGURATION
+
+
 // No support for XML configuration in 
 // Poco::Util::Application. Avoids linking of XML
 // library and saves a few 100 Kbytes.
diff --git a/Util/include/Poco/Util/JSONConfiguration.h b/Util/include/Poco/Util/JSONConfiguration.h
index cdf83272c..e5ed1435a 100644
--- a/Util/include/Poco/Util/JSONConfiguration.h
+++ b/Util/include/Poco/Util/JSONConfiguration.h
@@ -36,6 +36,11 @@
 //
 
 
+// Avoid accidental linking of JSON library when JSONConfiguration
+// is not desired.
+#ifndef POCO_UTIL_NO_JSONCONFIGURATION
+
+
 #ifndef Util_JSONConfiguration_INCLUDED
 #define Util_JSONConfiguration_INCLUDED
 
@@ -160,3 +165,5 @@ private:
 
 
 #endif // Util_JSONConfiguration_INCLUDED
+
+#endif // POCO_UTIL_NO_JSONCONFIGURATION
diff --git a/Util/include/Poco/Util/XMLConfiguration.h b/Util/include/Poco/Util/XMLConfiguration.h
index 2e07ac624..2413ff972 100644
--- a/Util/include/Poco/Util/XMLConfiguration.h
+++ b/Util/include/Poco/Util/XMLConfiguration.h
@@ -36,6 +36,11 @@
 //
 
 
+// Avoid accidental linking of XML library when XMLConfiguration
+// is not desired.
+#ifndef POCO_UTIL_NO_XMLCONFIGURATION
+
+
 #ifndef Util_XMLConfiguration_INCLUDED
 #define Util_XMLConfiguration_INCLUDED
 
@@ -215,3 +220,5 @@ private:
 
 
 #endif // Util_XMLConfiguration_INCLUDED
+
+#endif // POCO_UTIL_NO_XMLCONFIGURATION
diff --git a/Util/src/Application.cpp b/Util/src/Application.cpp
index c73056f97..71580b749 100644
--- a/Util/src/Application.cpp
+++ b/Util/src/Application.cpp
@@ -40,6 +40,7 @@
 #include "Poco/Util/PropertyFileConfiguration.h"
 #include "Poco/Util/IniFileConfiguration.h"
 #include "Poco/Util/XMLConfiguration.h"
+#include "Poco/Util/JSONConfiguration.h"
 #include "Poco/Util/LoggingSubsystem.h"
 #include "Poco/Util/Option.h"
 #include "Poco/Util/OptionProcessor.h"
@@ -251,6 +252,13 @@ int Application::loadConfiguration(int priority)
 		++n;
 	}
 #endif
+#ifndef POCO_UTIL_NO_JSONCONFIGURATION
+	if (findAppConfigFile(appPath.getBaseName(), "json", cfgPath))
+	{
+		_pConfig->add(new JSONConfiguration(cfgPath.toString()), priority, false, false);
+		++n;
+	}
+#endif
 #ifndef POCO_UTIL_NO_XMLCONFIGURATION
 	if (findAppConfigFile(appPath.getBaseName(), "xml", cfgPath))
 	{
@@ -276,6 +284,10 @@ void Application::loadConfiguration(const std::string& path, int priority)
 	else if (icompare(ext, "ini") == 0)
 		_pConfig->add(new IniFileConfiguration(confPath.toString()), priority, false, false);
 #endif
+#ifndef POCO_UTIL_NO_JSONONFIGURATION
+	else if (icompare(ext, "json") == 0)
+		_pConfig->add(new JSONConfiguration(confPath.toString()), priority, false, false);
+#endif
 #ifndef POCO_UTIL_NO_XMLCONFIGURATION
 	else if (icompare(ext, "xml") == 0)
 		_pConfig->add(new XMLConfiguration(confPath.toString()), priority, false, false);
diff --git a/Util/src/JSONConfiguration.cpp b/Util/src/JSONConfiguration.cpp
index 28c378af3..07ad67344 100644
--- a/Util/src/JSONConfiguration.cpp
+++ b/Util/src/JSONConfiguration.cpp
@@ -34,6 +34,11 @@
 //
 
 
+// Avoid accidental linking of JSON library when JSONConfiguration
+// is not desired.
+#ifndef POCO_UTIL_NO_JSONCONFIGURATION
+
+
 #include "Poco/FileStream.h"
 #include "Poco/StringTokenizer.h"
 #include "Poco/Util/JSONConfiguration.h"
@@ -404,3 +409,5 @@ void JSONConfiguration::removeRaw(const std::string& key)
 
 
 } } // namespace Poco::Util
+
+#endif // POCO_UTIL_NO_JSONCONFIGURATION
diff --git a/Util/src/XMLConfiguration.cpp b/Util/src/XMLConfiguration.cpp
index f0044fb5c..a86e27312 100644
--- a/Util/src/XMLConfiguration.cpp
+++ b/Util/src/XMLConfiguration.cpp
@@ -34,6 +34,11 @@
 //
 
 
+// Avoid accidental linking of XML library when XMLConfiguration
+// is not desired.
+#ifndef POCO_UTIL_NO_XMLCONFIGURATION
+
+
 #include "Poco/Util/XMLConfiguration.h"
 #include "Poco/SAX/InputSource.h"
 #include "Poco/DOM/DOMParser.h"
@@ -484,3 +489,5 @@ Poco::XML::Node* XMLConfiguration::findAttribute(const std::string& name, Poco::
 
 
 } } // namespace Poco::Util
+
+#endif // POCO_UTIL_NO_XMLCONFIGURATION
diff --git a/configure b/configure
index ba671ad1a..8951f982b 100755
--- a/configure
+++ b/configure
@@ -174,7 +174,7 @@ while [ $# -ge 1 ]; do
 		flags="$flags -DPOCO_NET_NO_IPv6" ;;
 
 	--poquito)
-		flags="$flags -DPOCO_NO_FILECHANNEL -DPOCO_NO_SPLITTERCHANNEL -DPOCO_NO_SYSLOGCHANNEL -DPOCO_UTIL_NO_INIFILECONFIGURATION -DPOCO_UTIL_NO_XMLCONFIGURATION" ;;
+		flags="$flags -DPOCO_NO_FILECHANNEL -DPOCO_NO_SPLITTERCHANNEL -DPOCO_NO_SYSLOGCHANNEL -DPOCO_UTIL_NO_INIFILECONFIGURATION -DPOCO_UTIL_NO_JSONCONFIGURATION -DPOCO_UTIL_NO_XMLCONFIGURATION" ;;
 
 	--unbundled)
  		flags="$flags -DPOCO_UNBUNDLED"