diff --git a/examples/detector.c b/examples/detector.c
index 326e07f1..754f8f8a 100644
--- a/examples/detector.c
+++ b/examples/detector.c
@@ -13,7 +13,7 @@ void train_detector(char *datacfg, char *cfgfile, char *weightfile, int *gpus, i
     char *base = basecfg(cfgfile);
     printf("%s\n", base);
     float avg_loss = -1;
-    network **nets = calloc(ngpus, sizeof(network));
+    network **nets = calloc(ngpus, sizeof(network*));
 
     srand(time(0));
     int seed = rand();