diff --git a/src/mfoc.c b/src/mfoc.c
index 2c9296a..3bb4e63 100644
--- a/src/mfoc.c
+++ b/src/mfoc.c
@@ -164,7 +164,7 @@ int main(int argc, char * const argv[]) {
 	}
 	
 	// Initialize reader/tag structures
-	mf_init(&t, &r);
+	mf_init(&r);
 
 	if (nfc_initiator_init (r.pdi) < 0) {
 		nfc_perror (r.pdi, "nfc_initiator_init");
@@ -542,7 +542,7 @@ void usage(FILE * stream, int errno) {
 	exit(errno);
 }
 
-void mf_init(mftag *t, mfreader *r) {
+void mf_init(mfreader *r) {
 	// Connect to the first NFC device
 	nfc_init(NULL);
 	r->pdi = nfc_open(NULL, NULL);
diff --git a/src/mfoc.h b/src/mfoc.h
index 6e159bf..863bbcb 100644
--- a/src/mfoc.h
+++ b/src/mfoc.h
@@ -70,7 +70,7 @@ typedef struct {
 
 
 void usage(FILE * stream, int errno);
-void mf_init(mftag *t, mfreader *r);
+void mf_init(mfreader *r);
 void mf_configure(nfc_device* pdi);
 void mf_select_tag(nfc_device* pdi, nfc_target* pnt);
 int trailer_block(uint32_t block);