diff --git a/libxfs/xfs_sb.c b/libxfs/xfs_sb.c
index fc33dc4..d05f0e6 100644
--- a/libxfs/xfs_sb.c
+++ b/libxfs/xfs_sb.c
@@ -970,7 +970,9 @@
 	 */
 	if (xfs_has_lazysbcount(mp)) {
 		mp->m_sb.sb_icount = percpu_counter_sum(&mp->m_icount);
-		mp->m_sb.sb_ifree = percpu_counter_sum(&mp->m_ifree);
+		mp->m_sb.sb_ifree = min_t(uint64_t,
+				percpu_counter_sum(&mp->m_ifree),
+				mp->m_sb.sb_icount);
 		mp->m_sb.sb_fdblocks = percpu_counter_sum(&mp->m_fdblocks);
 	}