diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4a4693947fdb1f11e3ec05ce0b43ecc30d11edfc..3007a8719e48af737c6254dbe873e7c7d13a83b0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -148,6 +148,7 @@ find_python_module(tee          REQUIRED)
 find_python_module(primefac     REQUIRED)
 find_python_module(graph_tool   REQUIRED)
 find_python_module(pyopencl     REQUIRED)
+find_python_module(pyfftw       REQUIRED)
 find_python_module(gpyfft       REQUIRED)
 find_python_module(backports.weakref        REQUIRED)
 find_python_module(argparse_color_formatter REQUIRED)
diff --git a/examples/taylor_green/taylor_green.py b/examples/taylor_green/taylor_green.py
index d45c3ecd2c0dbe8c617b4ccb156c27c31e16b0b9..278fba68c440ca779571aee302b99228936cd6e9 100644
--- a/examples/taylor_green/taylor_green.py
+++ b/examples/taylor_green/taylor_green.py
@@ -230,12 +230,8 @@ def compute(args):
     dfields = problem.input_discrete_fields
     dfields[vorti].initialize(formula=init_vorticity)
 
-    from hysop.tools.debug_dumper import DebugDumper
-    dbg = DebugDumper('GPU', force_overwrite=True)
-    dbg(-1, 0.0, 'W', dfields[vorti])
-    
     # Finally solve the problem 
-    problem.solve(simu, dry_run=args.dry_run, debug_dumper=dbg)
+    problem.solve(simu, dry_run=args.dry_run, debug_dumper=None)
     
     # Finalize
     problem.finalize()
diff --git a/examples/taylor_green/taylor_green_cpu.py b/examples/taylor_green/taylor_green_cpu.py
index 0d1675615bd3335a0ea1098f0885fd5feff7e4ba..e00e34baad3242fb0615ee0be9c833dbf4573344 100644
--- a/examples/taylor_green/taylor_green_cpu.py
+++ b/examples/taylor_green/taylor_green_cpu.py
@@ -231,12 +231,8 @@ def compute(args):
     dfields = problem.input_discrete_fields
     dfields[vorti].initialize(formula=init_vorticity)
     
-    from hysop.tools.debug_dumper import DebugDumper
-    dbg = DebugDumper('CPU')
-    dbg(-1, 0.0, 'W', dfields[vorti])
-    
     # Finally solve the problem 
-    problem.solve(simu, dry_run=args.dry_run, debug_dumper=dbg)
+    problem.solve(simu, dry_run=args.dry_run, debug_dumper=None)
     
     # Finalize
     problem.finalize()