diff --git a/block/src/formats/vhdx/internal/header.rs b/block/src/formats/vhdx/internal/header.rs
index 366e21d60..2481213f4 100644
--- a/block/src/formats/vhdx/internal/header.rs
+++ b/block/src/formats/vhdx/internal/header.rs
@@ -40,7 +40,7 @@ pub enum VhdxHeaderError {
     DuplicateBATEntry,
     #[error("Metadata region entry is not unique")]
     DuplicateMDREntry,
-    #[error("Checksum doesn't match for")]
+    #[error("Checksum doesn't match for {0}")]
     InvalidChecksum(String),
     #[error("Invalid entry count")]
     InvalidEntryCount,
diff --git a/block/src/lib.rs b/block/src/lib.rs
index 07ba8f9ed..3c025bac3 100644
--- a/block/src/lib.rs
+++ b/block/src/lib.rs
@@ -55,7 +55,7 @@ use crate::request::SECTOR_SIZE;
 pub enum Error {
     #[error("Guest gave us bad memory addresses")]
     GuestMemory(#[source] GuestMemoryError),
-    #[error("Guest gave us offsets that would have overflowed a usize")]
+    #[error("Guest address {0:?} with sector offset {1} would overflow a usize")]
     CheckedOffset(GuestAddress, usize /* sector offset */),
     #[error("Guest gave us a write only descriptor that protocol says to read from")]
     UnexpectedWriteOnlyDescriptor,