1 files changed, 4 insertions, 0 deletions
diff --git a/src/subscriber.c b/src/subscriber.c
index 1024041..9902d92 100644
--- a/src/subscriber.c
+++ b/src/subscriber.c
@@ -73,7 +73,11 @@ int main (int argc, char *argv [])
         }
         // Now open output file:
         sprintf(path,"%s/%s/%s/%ld",cdatadir,key,client,interval);
+        char exists=FILE_EXISTS(path);
         fptr=fopen(path,"a");
+        if(!exists){
+          fwrite(CSV_HEADER"\n", strlen(CSV_HEADER)+1, 1, fptr);
+        }
       }
 
       // Write all the measurements: