diff --git a/config.json b/config.json
index 0b20cd3a..5cf02505 100644
--- a/config.json
+++ b/config.json
@@ -106,7 +106,7 @@
 
     // TENSORBOARD and LOGGING
     "print_step": 25,       // Number of steps to log training on console.
-    "tb_plot_step:": 100,    // Number of steps to plot TB training figures.
+    "tb_plot_step": 100,    // Number of steps to plot TB training figures.
     "print_eval": false,     // If True, it prints intermediate loss values in evalulation.
     "save_step": 10000,      // Number of training steps expected to save traninpg stats and checkpoints.
     "checkpoint": true,     // If true, it saves checkpoints per "save_step"