diff --git a/build/config/build.properties b/build/config/build.properties
index 99056219..639c821a 100644
--- a/build/config/build.properties
+++ b/build/config/build.properties
@@ -198,9 +198,9 @@ javacVerbose=true
 #compilerArg=
 
 # Default value for the version of the source code. This value is used when compiling plug-ins that do not set the Bundle-RequiredExecutionEnvironment or set javacSource in build.properties
-javacSource=1.7
+javacSource=1.6
 
 # Default value for the version of the byte code targeted. This value is used when compiling plug-ins that do not set the Bundle-RequiredExecutionEnvironment or set javacTarget in build.properties.
-javacTarget=1.7
+javacTarget=1.6