diff --git a/FPEngine.cc b/FPEngine.cc
index af0d5d2cc..b7f885fea 100644
--- a/FPEngine.cc
+++ b/FPEngine.cc
@@ -206,7 +206,7 @@ void FPNetworkControl::init(const char *ifname, devtype iftype) {
   if ((this->nsp = nsock_pool_new(NULL)) == NULL)
     fatal("Unable to obtain an Nsock pool");
 
-  nsock_set_log_function(nmap_nsock_stderr_logger);
+  nmap_set_nsock_logger();
   nmap_adjust_loglevel(o.packetTrace());
 
   nsock_pool_set_device(nsp, o.device);
diff --git a/nmap_dns.cc b/nmap_dns.cc
index 7aabe95ee..8ab73c217 100644
--- a/nmap_dns.cc
+++ b/nmap_dns.cc
@@ -1190,7 +1190,7 @@ static void nmap_mass_rdns_core(Target **targets, int num_targets) {
   if ((dnspool = nsock_pool_new(NULL)) == NULL)
     fatal("Unable to create nsock pool in %s()", __func__);
 
-  nsock_set_log_function(nmap_nsock_stderr_logger);
+  nmap_set_nsock_logger();
   nmap_adjust_loglevel(o.packetTrace());
 
   nsock_pool_set_device(dnspool, o.device);
diff --git a/nse_nsock.cc b/nse_nsock.cc
index df9866647..7808585ff 100644
--- a/nse_nsock.cc
+++ b/nse_nsock.cc
@@ -85,7 +85,7 @@ static nsock_pool new_pool (lua_State *L)
   nsock_pool *nspp;
 
   /* configure logging */
-  nsock_set_log_function(nmap_nsock_stderr_logger);
+  nmap_set_nsock_logger();
   nmap_adjust_loglevel(o.scriptTrace());
 
   nsock_pool_set_device(nsp, o.device);
diff --git a/output.cc b/output.cc
index a6f0fdbcc..fb6e911ed 100644
--- a/output.cc
+++ b/output.cc
@@ -151,6 +151,7 @@
 #include "xml.h"
 #include "nbase.h"
 #include "libnetutil/netutil.h"
+#include <nsock.h>
 
 #include <math.h>
 
@@ -2782,7 +2783,7 @@ void nmap_adjust_loglevel(bool trace) {
   nsock_set_loglevel(nsock_loglevel);
 }
 
-void nmap_nsock_stderr_logger(const struct nsock_log_rec *rec) {
+static void nmap_nsock_stderr_logger(const struct nsock_log_rec *rec) {
   int elapsed_time;
 
   elapsed_time = TIMEVAL_MSEC_SUBTRACT(rec->time, *(o.getStartTime()));
@@ -2790,3 +2791,7 @@ void nmap_nsock_stderr_logger(const struct nsock_log_rec *rec) {
   log_write(LOG_STDERR, "NSOCK %s [%.4fs] %s(): %s\n", nslog2str(rec->level),
             elapsed_time/1000.0, rec->func, rec->msg);
 }
+
+void nmap_set_nsock_logger() {
+  nsock_set_log_function(nmap_nsock_stderr_logger);
+}
diff --git a/output.h b/output.h
index 12d71c1a2..1ced040ce 100644
--- a/output.h
+++ b/output.h
@@ -173,7 +173,6 @@
 #ifndef NOLUA
 #include "nse_main.h"
 #endif
-#include <nsock.h>
 class PortList;
 class Target;
 
@@ -311,7 +310,7 @@ void printdatafilepaths();
 
 /* nsock logging interface */
 void nmap_adjust_loglevel(bool trace);
-void nmap_nsock_stderr_logger(const struct nsock_log_rec *rec);
+void nmap_set_nsock_logger();
 
 #endif /* OUTPUT_H */
 
diff --git a/service_scan.cc b/service_scan.cc
index 4ce378ed0..93403e757 100644
--- a/service_scan.cc
+++ b/service_scan.cc
@@ -2851,7 +2851,7 @@ int service_scan(std::vector<Target *> &Targets) {
   if ((nsp = nsock_pool_new(SG)) == NULL) {
     fatal("%s() failed to create new nsock pool.", __func__);
   }
-  nsock_set_log_function(nmap_nsock_stderr_logger);
+  nmap_set_nsock_logger();
   nmap_adjust_loglevel(o.versionTrace());
 
   nsock_pool_set_device(nsp, o.device);