diff --git a/tools/DatabaseViewer/main.cpp b/tools/DatabaseViewer/main.cpp
index 0b96e41382..597655dab9 100644
--- a/tools/DatabaseViewer/main.cpp
+++ b/tools/DatabaseViewer/main.cpp
@@ -28,6 +28,9 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <QApplication>
 #include "rtabmap/gui/DatabaseViewer.h"
 #include "rtabmap/utilite/ULogger.h"
+#ifdef RTABMAP_PYTHON
+#include <rtabmap/core/PythonInterface.h>
+#endif
 
 #include <vtkObject.h>
 #include <vtkVersionMacros.h>
@@ -50,6 +53,10 @@ int main(int argc, char * argv[])
     QSurfaceFormat::setDefaultFormat(QVTKRenderWidget::defaultFormat());
 #endif
 
+#ifdef RTABMAP_PYTHON
+	rtabmap::PythonInterface pythonInterface;
+#endif
+
 	QApplication * app = new QApplication(argc, argv);
 	rtabmap::DatabaseViewer * mainWindow = new rtabmap::DatabaseViewer();
 
diff --git a/tools/Matcher/main.cpp b/tools/Matcher/main.cpp
index 12f43ccc6f..8404db8a93 100644
--- a/tools/Matcher/main.cpp
+++ b/tools/Matcher/main.cpp
@@ -42,6 +42,9 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <rtabmap/utilite/UFile.h>
 #include <rtabmap/utilite/UStl.h>
 #include <rtabmap/utilite/UTimer.h>
+#ifdef RTABMAP_PYTHON
+#include <rtabmap/core/PythonInterface.h>
+#endif
 #include <fstream>
 #include <string>
 #include <QApplication>
@@ -169,6 +172,10 @@ int main(int argc, char * argv[])
 	printf("  --from_depth  = \"%s\"\n", fromDepthPath.c_str());
 	printf("  --to_depth    = \"%s\"\n", toDepthPath.c_str());
 
+#ifdef RTABMAP_PYTHON
+	rtabmap::PythonInterface pythonInterface;
+#endif
+
 	ParametersMap parameters = Parameters::parseArguments(argc, argv);
 	parameters.insert(ParametersPair(Parameters::kRegRepeatOnce(), "false"));