diff --git a/unitTesting/CMakeLists.txt b/unitTesting/CMakeLists.txt
index eca30b2584efd2cc5d643ae5db42645ee0d47b44..8c7d08250e71b907626f2efc9312638e8c86319b 100644
--- a/unitTesting/CMakeLists.txt
+++ b/unitTesting/CMakeLists.txt
@@ -26,10 +26,19 @@ ADD_DEFINITIONS(${DYNAMIC_GRAPH_CFLAGS})
 
 
 SET(EXECUTABLE_NAME interpreter-test)
-
 ADD_EXECUTABLE(${EXECUTABLE_NAME} interpreter-test.cc)
 TARGET_LINK_LIBRARIES(${EXECUTABLE_NAME} dynamic-graph-python)
-TARGET_LINK_LIBRARIES(${EXECUTABLE_NAME} ${DYNAMIC_GRAPH_LIBRARIES} -lpthread -ldl  -lutil)
+ADD_TEST(${EXECUTABLE_NAME}  ${EXECUTABLE_NAME})
+
 
+## Test runfile
+SET(EXECUTABLE_NAME interpreter-test-runfile)
+ADD_EXECUTABLE(${EXECUTABLE_NAME} interpreter-test-runfile.cc)
+TARGET_LINK_LIBRARIES(${EXECUTABLE_NAME} dynamic-graph-python)
 ADD_TEST(${EXECUTABLE_NAME}  ${EXECUTABLE_NAME})
 
+ADD_CUSTOM_COMMAND(TARGET interpreter-test-runfile POST_BUILD
+  COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_SOURCE_DIR}/unitTesting/test_python_error.py
+  ${CMAKE_BINARY_DIR}/unitTesting
+)
+
diff --git a/unitTesting/interpreter-test-runfile.cc b/unitTesting/interpreter-test-runfile.cc
new file mode 100644
index 0000000000000000000000000000000000000000..87d51629625b977cdb0befd14000c126f56668d7
--- /dev/null
+++ b/unitTesting/interpreter-test-runfile.cc
@@ -0,0 +1,21 @@
+// The purpose of this unit test is to check the interpreter::runPythonFile method
+#include "dynamic-graph/python/interpreter.hh"
+
+int main(int argc, char ** argv)
+{
+  // execute numerous time the same file.
+  // While running 1025, we can notice a change in the error.
+  // unfortunately, it can not be shown using a redirection of the streams
+  int numTest = 1025;
+  if (argc > 1)
+    numTest = atoi(argv[1]);
+
+  dynamicgraph::python::Interpreter interp;
+
+  for (int i=0; i<numTest; ++i)
+  {
+    interp.runPythonFile("test_python_error.py");
+  }
+
+  return 0;
+}
diff --git a/unitTesting/test_python_error.py b/unitTesting/test_python_error.py
new file mode 100644
index 0000000000000000000000000000000000000000..7bf749deec4cf7ff01d2d58e76f8c662e51bb0b4
--- /dev/null
+++ b/unitTesting/test_python_error.py
@@ -0,0 +1,9 @@
+import sys, os
+
+pkgConfigPath = os.environ.get("PKG_CONFIG_PATH")
+if pkgConfigPath == None:
+  pkgConfigPath = ''
+pathList = re.split(':', pkgConfigPath)
+
+print pathList
+