diff --git a/lfs.c b/lfs.c
index 31752b7c..37a90d01 100644
--- a/lfs.c
+++ b/lfs.c
@@ -2284,7 +2284,7 @@ static int lfsr_rbyd_fetch(lfs_t *lfs, lfsr_rbyd_t *rbyd,
                 rbyd->weight = weight;
                 ecksum = ecksum_;
 
-                // revert to data checksum
+                // revert to canonical checksum
                 cksum_ = cksum;
                 ecksum_.cksize = -1;
             }
@@ -2311,7 +2311,7 @@ static int lfsr_rbyd_fetch(lfs_t *lfs, lfsr_rbyd_t *rbyd,
 
             // end of trunk?
             if (!lfsr_tag_isalt(tag)) {
-                // update data checksum
+                // update canonical checksum
                 cksum = cksum_;
                 // update trunk and weight, unless we are a shrub trunk
                 if (!lfsr_tag_isshrub(tag) || trunk__ == trunk) {
@@ -3371,7 +3371,7 @@ static int lfsr_rbyd_appendcksum(lfs_t *lfs, lfsr_rbyd_t *rbyd) {
         return err;
     }
 
-    // save the data checksum
+    // save the canonical checksum
     uint32_t cksum = rbyd->cksum;
 
     // align to the next prog unit
@@ -3501,7 +3501,7 @@ static int lfsr_rbyd_appendcksum(lfs_t *lfs, lfsr_rbyd_t *rbyd) {
             = ((lfs_size_t)perturb
                 << (8*sizeof(lfs_size_t)-1))
             | off_;
-    // revert to data checksum
+    // revert to canonical checksum
     rbyd->cksum = cksum;
     return 0;
 }
diff --git a/scripts/dbgbmap.py b/scripts/dbgbmap.py
index dbff6281..f3fb584d 100755
--- a/scripts/dbgbmap.py
+++ b/scripts/dbgbmap.py
@@ -713,7 +713,7 @@ class Rbyd:
 
                 # end of trunk?
                 if not tag & TAG_ALT:
-                    # update data checksum
+                    # update canonical checksum
                     cksum_ = cksum__
                     # update trunk/weight unless we found a shrub or an
                     # explicit trunk (which may be a shrub) is requested
diff --git a/scripts/dbgbtree.py b/scripts/dbgbtree.py
index 5b8f1415..ded2b8b0 100755
--- a/scripts/dbgbtree.py
+++ b/scripts/dbgbtree.py
@@ -386,7 +386,7 @@ class Rbyd:
 
                 # end of trunk?
                 if not tag & TAG_ALT:
-                    # update data checksum
+                    # update canonical checksum
                     cksum_ = cksum__
                     # update trunk/weight unless we found a shrub or an
                     # explicit trunk (which may be a shrub) is requested
diff --git a/scripts/dbglfs.py b/scripts/dbglfs.py
index 403059d2..9a26c0b8 100755
--- a/scripts/dbglfs.py
+++ b/scripts/dbglfs.py
@@ -417,7 +417,7 @@ class Rbyd:
 
                 # end of trunk?
                 if not tag & TAG_ALT:
-                    # update data checksum
+                    # update canonical checksum
                     cksum_ = cksum__
                     # update trunk/weight unless we found a shrub or an
                     # explicit trunk (which may be a shrub) is requested
diff --git a/scripts/dbgmtree.py b/scripts/dbgmtree.py
index 34647262..05d533a9 100755
--- a/scripts/dbgmtree.py
+++ b/scripts/dbgmtree.py
@@ -401,7 +401,7 @@ class Rbyd:
 
                 # end of trunk?
                 if not tag & TAG_ALT:
-                    # update data checksum
+                    # update canonical checksum
                     cksum_ = cksum__
                     # update trunk/weight unless we found a shrub or an
                     # explicit trunk (which may be a shrub) is requested
diff --git a/scripts/dbgrbyd.py b/scripts/dbgrbyd.py
index 24404d2f..cd6d1463 100755
--- a/scripts/dbgrbyd.py
+++ b/scripts/dbgrbyd.py
@@ -580,7 +580,7 @@ def dbg_log(data, block_size, rev, eoff, weight, *,
                 upper_ += w
 
             if not tag & TAG_ALT:
-                # update data checksum
+                # update canonical checksum
                 cksum = cksum_
                 # derive the current tag's rid from alt weights
                 rid = lower_ + w-1
@@ -997,7 +997,7 @@ def main(disk, blocks=None, *,
 
                 # end of trunk?
                 if not tag & TAG_ALT:
-                    # update data checksum
+                    # update canonical checksum
                     cksum_ = cksum__
                     # update trunk/weight unless we found a shrub or an
                     # explicit trunk (which may be a shrub) is requested