diff --git a/testsuite/include/rtems/bsd/test/default-init.h b/testsuite/include/rtems/bsd/test/default-init.h
index caf6194e..62e32fef 100644
--- a/testsuite/include/rtems/bsd/test/default-init.h
+++ b/testsuite/include/rtems/bsd/test/default-init.h
@@ -93,8 +93,6 @@ rtems_task Init(
 #define CONFIGURE_APPLICATION_NEEDS_ZERO_DRIVER
 #define CONFIGURE_APPLICATION_NEEDS_LIBBLOCK
 
-#define CONFIGURE_USE_IMFS_AS_BASE_FILESYSTEM
-
 #define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 32
 
 #define CONFIGURE_MAXIMUM_USER_EXTENSIONS 1
diff --git a/testsuite/include/rtems/bsd/test/default-network-init.h b/testsuite/include/rtems/bsd/test/default-network-init.h
index 4d4e831c..b19fb409 100644
--- a/testsuite/include/rtems/bsd/test/default-network-init.h
+++ b/testsuite/include/rtems/bsd/test/default-network-init.h
@@ -322,8 +322,6 @@ Init(rtems_task_argument arg)
 #define CONFIGURE_APPLICATION_NEEDS_ZERO_DRIVER
 #define CONFIGURE_APPLICATION_NEEDS_LIBBLOCK
 
-#define CONFIGURE_USE_IMFS_AS_BASE_FILESYSTEM
-
 #define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 32
 
 #define CONFIGURE_MAXIMUM_USER_EXTENSIONS 1
diff --git a/testsuite/swi01/init.c b/testsuite/swi01/init.c
index ec5ae2b9..fb7ba601 100644
--- a/testsuite/swi01/init.c
+++ b/testsuite/swi01/init.c
@@ -58,10 +58,6 @@ static void Init(rtems_task_argument arg)
 #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
 #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
 
-#define CONFIGURE_USE_IMFS_AS_BASE_FILESYSTEM
-
-#define CONFIGURE_FILESYSTEM_IMFS
-
 #define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 32
 
 #define CONFIGURE_MAXIMUM_USER_EXTENSIONS 1
diff --git a/testsuite/timeout01/init.c b/testsuite/timeout01/init.c
index 92385e57..40ba8e52 100644
--- a/testsuite/timeout01/init.c
+++ b/testsuite/timeout01/init.c
@@ -58,10 +58,6 @@ static void Init(rtems_task_argument arg)
 #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
 #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
 
-#define CONFIGURE_USE_IMFS_AS_BASE_FILESYSTEM
-
-#define CONFIGURE_FILESYSTEM_IMFS
-
 #define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 32
 
 #define CONFIGURE_MAXIMUM_USER_EXTENSIONS 1