diff --git a/config/gfortran.cfg b/config/gfortran.cfg
index 192e6d49..291ea7fa 100644
--- a/config/gfortran.cfg
+++ b/config/gfortran.cfg
@@ -22,7 +22,7 @@ IRPF90_FLAGS : --ninja --align=32
 # 0 : Deactivate
 #
 [OPTION]
-MODE    : OPT        ; [ OPT | PROFILE | DEBUG ] : Chooses the section below
+MODE    : DEBUG        ; [ OPT | PROFILE | DEBUG ] : Chooses the section below
 CACHE   : 1          ; Enable cache_compile.py
 OPENMP  : 1          ; Append OpenMP flags