diff --git a/sys/src/cmd/paqfs/mkpaqfs.c b/sys/src/cmd/paqfs/mkpaqfs.c
index 1a0726f18..fbc91ee49 100644
--- a/sys/src/cmd/paqfs/mkpaqfs.c
+++ b/sys/src/cmd/paqfs/mkpaqfs.c
@@ -67,7 +67,7 @@ main(int argc, char *argv[])
 				blocksize *= 1024;
 		}
 		if(blocksize < MinBlockSize)
-			sysfatal("blocksize too small: must be at lease %d", MinBlockSize);
+			sysfatal("blocksize too small: must be at least %d", MinBlockSize);
 		if(blocksize > MaxBlockSize)
 			sysfatal("blocksize too large: must be no greater than %d", MaxBlockSize);
 		break;