--- a/src/chordii.c
+++ b/src/chordii.c
@@ -19,6 +19,8 @@
 
 static FILE *source_fd;
 
+struct kcs dummy_kcs;
+
 char
 	text_line[MAXLINE],	/* Lyrics Buffer */
 	chord[MAXTOKEN],	/* Buffer for the name of the chord */
--- a/src/chordii.h
+++ b/src/chordii.h
@@ -67,7 +67,7 @@
 #define CHORD_EASY	0
 #define CHORD_HARD	1
 
-struct kcs {
+extern struct kcs {
 	struct	kcs *next;
 	char	chord_name[CHORD_NAME_SZ];
 	int	displ;
@@ -76,7 +76,7 @@
 	int	difficult;
 	} dummy_kcs;
 
-struct chord_struct {
+typedef struct chord_struct {
 	struct chord_struct *next;
 	struct kcs *chord;
 	} dummy_chord_struct;