diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index f1401265c..e3e114773 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -62,6 +62,11 @@ jobs:
         SOURCE_DIR: ${{github.workspace}}
         BUILD_DIR: ${{github.workspace}}/build
         PYTHONPATH: /usr/lib/python${{ matrix.python-version }}/dist-packages
+    - name: Build_nopython
+      run: |
+        cmake -B ${{github.workspace}}/build_nopython -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DPYTHON_INTERFACE:BOOL=OFF
+        cmake --build ${{github.workspace}}/build_nopython --config ${{env.BUILD_TYPE}}
+        ctest -C ${{env.BUILD_TYPE}}
   build_windows:
     # The CMake configure and build commands are platform agnostic and should work equally
     # well on Windows or Mac.  You can convert this to a matrix build if you need
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 30291748c..67cc95ff2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -253,7 +253,12 @@ set(BOOST_LIB boost)
 endif()
 
 add_executable(all_tests tests/src/all_tests.cpp)
-target_link_libraries(all_tests ${PROJECT_NAME}_lib ${BOOST_LIB} test_fixtures ${LRT} )
+target_link_libraries(all_tests PRIVATE ${PROJECT_NAME}_lib ${BOOST_LIB} test_fixtures ${LRT} )
+if(PYTHON_INTERFACE)
+if (${PYTHONLIBS_FOUND})
+target_link_libraries(all_tests PUBLIC pybind11::embed)
+endif()
+endif()
 
 set_property(TARGET all_tests PROPERTY CXX_STANDARD 17)
 
@@ -275,6 +280,7 @@ pybind11_add_module(pyanalisi
 	)
 target_link_libraries(pyanalisi PRIVATE ${PROJECT_NAME}_lib ${LTR} )
 set_property(TARGET pyanalisi PROPERTY CXX_STANDARD 17)
+install(TARGETS pyanalisi DESTINATION ${PYTHON_SITE_PACKAGES} COMPONENT python )
 endif()
 endif()
 
@@ -291,6 +297,11 @@ endif()
 
 if (BUILD_MMAP)
 target_link_libraries(${PROJECT_NAME} PUBLIC boost_program_options "${FFTW}" "${FFTW_MT}" "${XDR_FILE}" ${LTR})
+if(PYTHON_INTERFACE)
+if (${PYTHONLIBS_FOUND})
+target_link_libraries(${PROJECT_NAME} PUBLIC pybind11::embed)
+endif()
+endif()
 endif()
 target_link_libraries(${PROJECT_NAME}_lib PRIVATE "${FFTW}" "${FFTW_MT}" "${XDR_FILE}")
 add_definitions(-DANALISI -DDEBUG)
@@ -350,5 +361,4 @@ CONFIGURE_FILE( ${CMAKE_CURRENT_SOURCE_DIR}/config.h.in ${CMAKE_CURRENT_BINARY_D
 include_directories( ${CMAKE_CURRENT_BINARY_DIR} )
 
 message(STATUS "python install library = ${PYTHON_SITE_PACKAGES}" )
-install(TARGETS pyanalisi DESTINATION ${PYTHON_SITE_PACKAGES} COMPONENT python )
 
diff --git a/lib/src/basetrajectory.cpp b/lib/src/basetrajectory.cpp
index d829b0dce..b8e8a4d85 100644
--- a/lib/src/basetrajectory.cpp
+++ b/lib/src/basetrajectory.cpp
@@ -1,6 +1,4 @@
 #include "testtraiettoria.h"
-#include "trajectory.h"
-#include "trajectory_numpy.h"
 #include "config.h"
 
 template <class T>
@@ -91,9 +89,11 @@ size_t BaseTrajectory<T>::get_ntypes (){
 }
 
 #ifdef PYTHON_SUPPORT
+#include "trajectory_numpy.h"
 template class BaseTrajectory<Trajectory_numpy>;
 #endif
 
 #ifdef BUILD_MMAP
+#include "trajectory.h"
 template class BaseTrajectory<Trajectory>;
 #endif