diff --git a/compute/CMakeLists.txt b/compute/CMakeLists.txt
index 45700455d95c5a27fd8aa2cbe3ce7f07ab1245a9..3160f15e186f7b37ea4ee58d689d84d2abe20190 100644
--- a/compute/CMakeLists.txt
+++ b/compute/CMakeLists.txt
@@ -37,6 +37,10 @@ if ( CHAMELEON_SCHED_QUARK )
   # No need for those extra diagonale tiles
   set( CHAMELEON_COPY_DIAG OFF )
 endif()
+if ( CHAMELEON_SCHED_PARSEC )
+  # Actual DIAG can not be used with PaRSEC
+  set( CHAMELEON_COPY_DIAG OFF )
+endif()
 
 mark_as_advanced(CHAMELEON_COPY_DIAG)