diff --git a/lfs.c b/lfs.c
index 19e911eb..b5ad40b9 100644
--- a/lfs.c
+++ b/lfs.c
@@ -14141,7 +14141,6 @@ int lfsr_format(lfs_t *lfs, uint32_t flags,
                 | LFS_IFDEF_CKFETCHES(LFS_F_CKFETCHES, 0)
                 | LFS_IFDEF_CKPARITY(LFS_F_CKPARITY, 0)
                 | LFS_IFDEF_CKDATACKSUMS(LFS_F_CKDATACKSUMS, 0)
-                | LFS_F_COMPACT
                 | LFS_F_CKMETA
                 | LFS_F_CKDATA)) == 0);
     // some flags don't make sense when only traversing the mtree
@@ -14179,14 +14178,12 @@ int lfsr_format(lfs_t *lfs, uint32_t flags,
 
     // run gc if requested
     if (flags & (
-            LFS_F_COMPACT
-                | LFS_F_CKMETA
+            LFS_F_CKMETA
                 | LFS_F_CKDATA)) {
         lfsr_traversal_t t;
         err = lfsr_fs_gc_(lfs, &t,
                 flags & (
-                    LFS_F_COMPACT
-                        | LFS_F_CKMETA
+                    LFS_F_CKMETA
                         | LFS_F_CKDATA),
                 -1);
         if (err) {
diff --git a/lfs.h b/lfs.h
index 369b683f..f9264e08 100644
--- a/lfs.h
+++ b/lfs.h
@@ -173,7 +173,6 @@ enum lfs_type {
                         0x08000000  // Check data checksums on reads
 #endif
 
-#define LFS_F_COMPACT   0x00008000  // Compact metadata logs
 #define LFS_F_CKMETA    0x00010000  // Check metadata checksums
 #define LFS_F_CKDATA    0x00020000  // Check metadata + data checksums
 
diff --git a/tests/test_mount.toml b/tests/test_mount.toml
index 8ef0803f..e59bff4b 100644
--- a/tests/test_mount.toml
+++ b/tests/test_mount.toml
@@ -85,7 +85,6 @@ defines.CKPROGS = [false, true]
 defines.CKFETCHES = [false, true]
 defines.CKPARITY = [false, true]
 defines.CKDATACKSUMS = [false, true]
-defines.COMPACT = [false, true]
 defines.CKMETA = [false, true]
 defines.CKDATA = [false, true]
 if = [
@@ -104,9 +103,8 @@ code = '''
                 | ((CKDATACKSUMS)
                     ? LFS_IFDEF_CKDATACKSUMS(LFS_F_CKDATACKSUMS, -1)
                     : 0)
-                | ((COMPACT) ? LFS_M_COMPACT : 0)
-                | ((CKMETA) ? LFS_M_CKMETA : 0)
-                | ((CKDATA) ? LFS_M_CKDATA : 0),
+                | ((CKMETA) ? LFS_F_CKMETA : 0)
+                | ((CKDATA) ? LFS_F_CKDATA : 0),
             CFG) => 0;
 
     lfsr_mount(&lfs, LFS_M_RDWR, CFG) => 0;