diff --git a/lib/shadowlog_internal.h b/lib/shadowlog_internal.h
index f972a3c40..2ed7932be 100644
--- a/lib/shadowlog_internal.h
+++ b/lib/shadowlog_internal.h
@@ -1,7 +1,7 @@
 #ifndef _SHADOWLOG_INTERNAL_H
 #define _SHADOWLOG_INTERNAL_H
 
-extern const char *shadow_progname; /* Program name showed in error messages */
+extern const char *shadow_progname; /* Program name shown in error messages */
 extern FILE *shadow_logfd;  /* file descriptor to which error messages are printed */
 
 #endif /* _SHADOWLOG_INTERNAL_H */