diff --git a/include/log.h b/include/log.h
index 11555ab7..d3e967e7 100644
--- a/include/log.h
+++ b/include/log.h
@@ -49,20 +49,23 @@ void set_verbosity(bool _verbose);
  * but only if debug logging was activated.
  *
  */
-void debuglog(char *fmt, ...);
+void debuglog(char *fmt, ...)
+    __attribute__ ((format (printf, 1, 2)));
 
 /**
  * Logs the given message to stdout while prefixing the current time to it.
  *
  */
-void errorlog(char *fmt, ...);
+void errorlog(char *fmt, ...)
+    __attribute__ ((format (printf, 1, 2)));
 
 /**
  * Logs the given message to stdout while prefixing the current time to it,
  * but only if verbose mode is activated.
  *
  */
-void verboselog(char *fmt, ...);
+void verboselog(char *fmt, ...)
+    __attribute__ ((format (printf, 1, 2)));
 
 /**
  * Logs the given message to stdout while prefixing the current time to it.