diff --git a/AltairZ80/disasm.c b/AltairZ80/disasm.c
index 652ce87f..47357624 100644
--- a/AltairZ80/disasm.c
+++ b/AltairZ80/disasm.c
@@ -1180,7 +1180,7 @@ long disasm (unsigned char *data, char *output, int segsize, long offset)
     int rep, lock, asize, osize, i, slen, colon;
     unsigned char *origdata;
     int works;
-    insn tmp_ins, ins;
+    insn tmp_ins = { NULL }, ins;
     unsigned long goodness, best;
 
     /*
diff --git a/AltairZ80/nasm.h b/AltairZ80/nasm.h
index 2c47fa94..2745189b 100644
--- a/AltairZ80/nasm.h
+++ b/AltairZ80/nasm.h
@@ -260,7 +260,7 @@ typedef struct extop {          /* extended operand */
 #define MAXPREFIX 4
 
 typedef struct {                /* an instruction itself */
-    /* char *label; not needed */               /* the label defined, or NULL */
+    char *label;                /* the label defined, or NULL */
     int prefixes[MAXPREFIX];    /* instruction prefixes, if any */
     int nprefix;                /* number of entries in above */
     int opcode;                 /* the opcode - not just the string */