diff --git a/src/SConstruct b/src/SConstruct
index a95c803..e2273db 100644
--- a/src/SConstruct
+++ b/src/SConstruct
@@ -87,5 +87,7 @@ if GetOption('verbose'):
 
 
 Export('env')
-SConscript('msspec/spec/fortran/SConstruct', variant_dir='build/build_spec')
-SConscript('msspec/phagen/fortran/SConstruct', variant_dir='build/build_phagen')
+SConscript('msspec/spec/fortran/SConstruct')
+SConscript('msspec/phagen/fortran/SConstruct')
+#SConscript('msspec/spec/fortran/SConstruct', variant_dir='build/build_spec')
+#SConscript('msspec/phagen/fortran/SConstruct', variant_dir='build/build_phagen')
diff --git a/src/msspec/phagen/fortran/SConstruct b/src/msspec/phagen/fortran/SConstruct
index c83bfdd..d1bde7e 100644
--- a/src/msspec/phagen/fortran/SConstruct
+++ b/src/msspec/phagen/fortran/SConstruct
@@ -5,6 +5,6 @@ objects_src= ['phagen_scf_2.1_dp.f']
 objects = env.Object(objects_src)
 
 module = env.F2py('libphagen', ['main.f'] + objects, F2PYCOMSTR=">>")
-env.InstallModule(module)
+#env.InstallModule(module)
 
 env.Alias('phagen', module)
diff --git a/src/msspec/spec/fortran/SConstruct b/src/msspec/spec/fortran/SConstruct
index 3fd43b2..8b33576 100644
--- a/src/msspec/spec/fortran/SConstruct
+++ b/src/msspec/spec/fortran/SConstruct
@@ -46,19 +46,19 @@ common_deps = dim_mod_obj + memalloc_obj + cluster_gen_obj + common_sub_obj
 
 deps = common_deps + renormalization_obj + phd_se_noso_nosp_nosym_obj
 phd_se_mod = env_spec.F2py('_phd_se_noso_nosp_nosym', ['phd_se_noso_nosp_nosym/main.f'] + deps)
-env_spec.InstallModule(phd_se_mod)
+#env_spec.InstallModule(phd_se_mod)
 
 deps = common_deps + renormalization_obj + phd_mi_noso_nosp_nosym_obj
 phd_mi_mod = env_spec.F2py('_phd_mi_noso_nosp_nosym', ['phd_mi_noso_nosp_nosym/main.f'] + deps)
-env_spec.InstallModule(phd_mi_mod)
+#env_spec.InstallModule(phd_mi_mod)
 
 deps = common_deps + renormalization_obj + eig_common_obj + eig_mi_obj
 eig_mi_mod = env_spec.F2py('_eig_mi', ['eig/mi/main.f'] + deps)
-env_spec.InstallModule(eig_mi_mod)
+#env_spec.InstallModule(eig_mi_mod)
 
 deps = common_deps + renormalization_obj + eig_common_obj + eig_pw_obj
 eig_pw_mod = env_spec.F2py('_eig_pw', ['eig/pw/main.f'] + deps)
-env_spec.InstallModule(eig_pw_mod)
+#env_spec.InstallModule(eig_pw_mod)
 
 # Alias
 env_spec.Alias('spec', [phd_se_mod, phd_mi_mod, eig_pw_mod, eig_mi_mod])