1 files changed, 4 insertions, 5 deletions
diff --git a/src/utils.h b/src/utils.h
index 4fd6b68..d427d01 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -8,25 +8,24 @@
 #define MIN_INTERVAL 30
 #define INA260_SYSFS "/sys/kernel/ina260"
 #define INA260_POWER_REGISTER "registers/power"
+
 #ifndef ZMQ_TOKEN
 #define ZMQ_TOKEN "ina260-zmq-publisher"
 #endif
+
+#ifndef ZMQ_MSG_SIZE
 #define ZMQ_MSG_SIZE 255*10
+#endif
 
 #define STR(symbol) #symbol
 #define STRINGIFY(symbol) STR(symbol)
-
 #define TIMESTAMP() (time(NULL))
-
 #define INTERVAL(duration)\
     ((TIMESTAMP()) - ((TIMESTAMP())%(duration)))
-
 #define INTERVAL_NEXT(duration)\
     ((INTERVAL(duration))+(duration))
-
 #define INTERVAL_LAST(duration)\
     (INTERVAL(INTERVAL((TIMESTAMP()),(duration))-1,(duration)))
-
 #define FILE_EXISTS(path) (access((path), F_OK) == 0)
 
 void mkdirp(char *path);
 \ No newline at end of file