diff --git a/readme.txt b/readme.txt
index ce2238b39..06b24b7f0 100644
--- a/readme.txt
+++ b/readme.txt
@@ -87,10 +87,10 @@ Compiling
     g++ (for experts)
     =================
         If you just want to build Cppcheck without dependencies then you can use this command:
-            g++ -o cppcheck -std=c++11 -Iexternals -Iexternals/simplecpp -Iexternals/tinyxml2 -Ilib cli/*.cpp lib/*.cpp externals/simplecpp/simplecpp.cpp externals/tinyxml2/*.cpp
+            g++ -o cppcheck -std=c++11 -Iexternals -Iexternals/picojson -Iexternals/simplecpp -Iexternals/tinyxml2 -Ilib cli/*.cpp lib/*.cpp externals/simplecpp/simplecpp.cpp externals/tinyxml2/*.cpp
 
         If you want to use --rule and --rule-file then dependencies are needed:
-            g++ -o cppcheck -std=c++11 -lpcre -DHAVE_RULES -Ilib -Iexternals -Iexternals/simplecpp -Iexternals/tinyxml2 cli/*.cpp lib/*.cpp externals/simplecpp/simplecpp.cpp externals/tinyxml2/*.cpp
+            g++ -o cppcheck -std=c++11 -lpcre -DHAVE_RULES -Ilib -Iexternals -Iexternals/picojson -Iexternals/simplecpp -Iexternals/tinyxml2 cli/*.cpp lib/*.cpp externals/simplecpp/simplecpp.cpp externals/tinyxml2/*.cpp
 
     mingw
     =====