diff --git a/auto/sources b/auto/sources
index 7cef849cbb..9e9361bc0d 100644
--- a/auto/sources
+++ b/auto/sources
@@ -152,6 +152,7 @@ UNIX_DEPS="$CORE_DEPS $EVENT_DEPS \
             src/os/unix/ngx_shmem.h \
             src/os/unix/ngx_process.h \
             src/os/unix/ngx_setaffinity.h \
+            src/os/unix/ngx_getaffinity.h \
             src/os/unix/ngx_setproctitle.h \
             src/os/unix/ngx_atomic.h \
             src/os/unix/ngx_gcc_atomic_x86.h \
@@ -192,6 +193,7 @@ UNIX_SRCS="$CORE_SRCS $EVENT_SRCS \
             src/os/unix/ngx_process.c \
             src/os/unix/ngx_daemon.c \
             src/os/unix/ngx_setaffinity.c \
+            src/os/unix/ngx_getaffinity.c \
             src/os/unix/ngx_setproctitle.c \
             src/os/unix/ngx_posix_init.c \
             src/os/unix/ngx_user.c \
diff --git a/src/core/nginx.c b/src/core/nginx.c
index 4d193f33a5..4c142be31d 100755
--- a/src/core/nginx.c
+++ b/src/core/nginx.c
@@ -9,6 +9,9 @@
 #include <ngx_core.h>
 #include <nginx.h>
 
+#if (T_NGX_HAVE_SCHED_GETAFFINITY)
+#include <ngx_getaffinity.h>
+#endif
 
 static void ngx_show_version_info(void);
 static ngx_int_t ngx_add_inherited_sockets(ngx_cycle_t *cycle);
diff --git a/src/os/unix/ngx_getaffinity.h b/src/os/unix/ngx_getaffinity.h
index 18b0417970..e34f1708b0 100644
--- a/src/os/unix/ngx_getaffinity.h
+++ b/src/os/unix/ngx_getaffinity.h
@@ -22,4 +22,4 @@ typedef uint64_t  ngx_cpuset_t;
 #endif
 
 
-#endif /* _NGX_SETAFFINITY_H_INCLUDED_ */
+#endif /* _NGX_GETAFFINITY_H_INCLUDED_ */