fixes #879 documentation for nn_get_statistic
diff --git a/doc/nn_get_statistic.adoc b/doc/nn_get_statistic.adoc
index 89f038b..63194e6 100644
--- a/doc/nn_get_statistic.adoc
+++ b/doc/nn_get_statistic.adoc
@@ -10,7 +10,7 @@
 --------
 *#include <nanomsg/nn.h>*
 
-*uint64_t *nn_get_statistic (int 's', int 'statistic');*
+*uint64_t nn_get_statistic (int 's', int 'statistic');*
 
 
 DESCRIPTION