diff --git a/scripts/mk_util.py b/scripts/mk_util.py
index cf06a10..9620a4f 100644
--- a/scripts/mk_util.py
+++ b/scripts/mk_util.py
@@ -2441,9 +2441,9 @@ def mk_config():
             CXXFLAGS       = '%s -fno-strict-aliasing -D_LINUX_' % CXXFLAGS
             OS_DEFINES     = '-D_LINUX_'
             SO_EXT         = '.so'
-            LDFLAGS        = '%s -lrt' % LDFLAGS
+            LDFLAGS        = '%s -lpthread -lrt' % LDFLAGS
             SLIBFLAGS      = '-shared'
-            SLIBEXTRAFLAGS = '%s -lrt' % SLIBEXTRAFLAGS
+            SLIBEXTRAFLAGS = '%s -lpthread -lrt' % SLIBEXTRAFLAGS
         elif sysname == 'FreeBSD':
             CXXFLAGS       = '%s -fno-strict-aliasing -D_FREEBSD_' % CXXFLAGS
             OS_DEFINES     = '-D_FREEBSD_'