diff --git a/lfs.c b/lfs.c
index 05d20db6..ba7c6ae3 100644
--- a/lfs.c
+++ b/lfs.c
@@ -13393,25 +13393,28 @@ static int lfs_deinit(lfs_t *lfs) {
 //
 enum lfsr_rcompat {
     LFSR_RCOMPAT_NONSTANDARD = 0x0001, // Non-standard filesystem format
-    LFSR_RCOMPAT_MLEAF       = 0x0002, // May use a single mdir pointer
-    LFSR_RCOMPAT_MTREE       = 0x0008, // May use an mtree
-    LFSR_RCOMPAT_BSPROUT     = 0x0010, // Files may use inlined data
-    LFSR_RCOMPAT_BLEAF       = 0x0020, // Files may use single block pointers
-    LFSR_RCOMPAT_BSHRUB      = 0x0040, // Files may use inlined btrees
-    LFSR_RCOMPAT_BTREE       = 0x0080, // Files may use btrees
-    LFSR_RCOMPAT_GRM         = 0x0100, // May use a global-remove
+    LFSR_RCOMPAT_GRM         = 0x0004, // May use a global-remove
+    LFSR_RCOMPAT_MSPROUT     = 0x0010, // May use an inlined mdir
+    LFSR_RCOMPAT_MLEAF       = 0x0020, // May use a single mdir pointer
+    LFSR_RCOMPAT_MSHRUB      = 0x0040, // May use an inlined mtree
+    LFSR_RCOMPAT_MTREE       = 0x0080, // May use an mtree
+    LFSR_RCOMPAT_BSPROUT     = 0x0100, // Files may use inlined data
+    LFSR_RCOMPAT_BLEAF       = 0x0200, // Files may use single block pointers
+    LFSR_RCOMPAT_BSHRUB      = 0x0400, // Files may use inlined btrees
+    LFSR_RCOMPAT_BTREE       = 0x0800, // Files may use btrees
     // internal
     LFSR_rcompat_OVERFLOW    = 0x8000, // Can't represent all flags
 };
 
 #define LFSR_RCOMPAT_COMPAT \
-    (LFSR_RCOMPAT_MLEAF \
+    (LFSR_RCOMPAT_GRM \
+        | LFSR_RCOMPAT_MSPROUT \
+        | LFSR_RCOMPAT_MLEAF \
         | LFSR_RCOMPAT_MTREE \
         | LFSR_RCOMPAT_BSPROUT \
         | LFSR_RCOMPAT_BLEAF \
         | LFSR_RCOMPAT_BSHRUB \
-        | LFSR_RCOMPAT_BTREE \
-        | LFSR_RCOMPAT_GRM)
+        | LFSR_RCOMPAT_BTREE)
 
 enum lfsr_wcompat {
     LFSR_WCOMPAT_NONSTANDARD = 0x0001, // Non-standard filesystem format
diff --git a/scripts/dbgflags.py b/scripts/dbgflags.py
index cfd8d1af..720df81a 100755
--- a/scripts/dbgflags.py
+++ b/scripts/dbgflags.py
@@ -149,13 +149,15 @@ FLAGS = [
     # Read-compat flags
     ('RCOMPAT', 'NONSTANDARD',
                            0x0001, "Non-standard filesystem format"           ),
-    ('RCOMPAT', 'MLEAF',   0x0002, "May use a single mdir pointer"            ),
-    ('RCOMPAT', 'MTREE',   0x0008, "May use an mdir btree"                    ),
-    ('RCOMPAT', 'BSPROUT', 0x0010, "Files may use inlined data"               ),
-    ('RCOMPAT', 'BLEAF',   0x0020, "Files may use single block pointers"      ),
-    ('RCOMPAT', 'BSHRUB',  0x0040, "Files may use inlined btrees"             ),
-    ('RCOMPAT', 'BTREE',   0x0080, "Files may use btrees"                     ),
-    ('RCOMPAT', 'GRM',     0x0100, "May use a global-remove"                  ),
+    ('RCOMPAT', 'GRM',     0x0004, "May use a global-remove"                  ),
+    ('RCOMPAT', 'MSPROUT', 0x0010, "May use an inlined mdir"                  ),
+    ('RCOMPAT', 'MLEAF',   0x0020, "May use a single mdir pointer"            ),
+    ('RCOMPAT', 'MSHRUB',  0x0040, "May use an inlined mtree"                 ),
+    ('RCOMPAT', 'MTREE',   0x0080, "May use an mdir btree"                    ),
+    ('RCOMPAT', 'BSPROUT', 0x0100, "Files may use inlined data"               ),
+    ('RCOMPAT', 'BLEAF',   0x0200, "Files may use single block pointers"      ),
+    ('RCOMPAT', 'BSHRUB',  0x0400, "Files may use inlined btrees"             ),
+    ('RCOMPAT', 'BTREE',   0x0800, "Files may use btrees"                     ),
 
     ('rcompat', 'OVERFLOW',0x8000, "Can't represent all flags"                ),