diff --git a/artiq/frontend/artiq_coretool.py b/artiq/frontend/artiq_coretool.py
index 92af19734..ed8224511 100755
--- a/artiq/frontend/artiq_coretool.py
+++ b/artiq/frontend/artiq_coretool.py
@@ -64,7 +64,7 @@ def main():
         comm.check_ident()
 
         if args.action == "log":
-          print(comm.get_log())
+          print(comm.get_log(), end='')
         elif args.action == "cfg-read":
             value = comm.flash_storage_read(args.key)
             if not value:
diff --git a/soc/runtime/log.c b/soc/runtime/log.c
index cb64bea00..6ac28fc1e 100644
--- a/soc/runtime/log.c
+++ b/soc/runtime/log.c
@@ -56,8 +56,8 @@ void log_get(char *outbuf)
 {
     int i, j;
 
-    j = buffer_index + 1;
-    for(i=0;i<LOG_BUFFER_SIZE;i++) {
+    j = buffer_index;
+    for(i = 0; i < LOG_BUFFER_SIZE; i++) {
         outbuf[i] = buffer[j];
         j = (j + 1) % LOG_BUFFER_SIZE;
     }