diff --git a/src/jtag/tcl.c b/src/jtag/tcl.c
index fb060f9a7..b95bf7566 100644
--- a/src/jtag/tcl.c
+++ b/src/jtag/tcl.c
@@ -205,7 +205,7 @@ static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args
 
 		Jim_GetLong(interp, args[i], &bits);
 		str = buf_to_str(fields[field_count].in_value, bits, 16);
-		free((void *)fields[field_count].out_value);
+		free(fields[field_count].in_value);
 
 		Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
 		free(str);