diff --git a/backend/sp15c.c b/backend/sp15c.c
index 20b2c8077..d9d38f521 100644
--- a/backend/sp15c.c
+++ b/backend/sp15c.c
@@ -192,10 +192,10 @@
    . - sane_open() : open a particular scanner-device
    . . - sane_set_io_mode : set blocking-mode
    . . - sane_get_select_fd : get scanner-fd
-   . . - sane_get_option_descriptor() : get option informations
+   . . - sane_get_option_descriptor() : get option information
    . . - sane_control_option() : change option values
    . .
-   . . - sane_start() : start image aquisition
+   . . - sane_start() : start image acquisition
    . .   - sane_get_parameters() : returns actual scan-parameters
    . .   - sane_read() : read image-data (from pipe)
    . .