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-rw-r--r--src/include/gpxe/editstring.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/include/gpxe/editstring.h b/src/include/gpxe/editstring.h
index 7f3c5dcb1..fad8bd5a7 100644
--- a/src/include/gpxe/editstring.h
+++ b/src/include/gpxe/editstring.h
@@ -26,6 +26,6 @@ struct edit_string {
unsigned int mod_end;
};
-extern int edit_string ( struct edit_string *string, int key );
+extern int edit_string ( struct edit_string *string, int key ) __nonnull;
#endif /* _GPXE_EDITSTRING_H */