diff --git a/src/i2c/i2c.c b/src/i2c/i2c.c
index 00f05c8c5..9dab08800 100644
--- a/src/i2c/i2c.c
+++ b/src/i2c/i2c.c
@@ -79,7 +79,7 @@ mraa_i2c_init_internal(mraa_adv_func_t* advance_func, unsigned int bus)
 
     mraa_i2c_context dev = (mraa_i2c_context) calloc(1, sizeof(struct _i2c));
     if (dev == NULL) {
-        syslog(LOG_CRIT, "i2c%s_init: Failed to allocate memory for context", bus);
+        syslog(LOG_CRIT, "i2c%i_init: Failed to allocate memory for context", bus);
         return NULL;
     }