Index: usbguard-0.7.4/Makefile.am
===================================================================
--- usbguard-0.7.4.orig/Makefile.am
+++ usbguard-0.7.4/Makefile.am
@@ -342,6 +342,8 @@ usbguard_daemon_CPPFLAGS=\
 	@libcapng_CFLAGS@ \
 	@audit_CFLAGS@
 
+usbguard_daemon_LIBFLAGS= -pthread
+
 usbguard_daemon_LDADD=\
 	$(top_builddir)/libusbguard.la \
 	@seccomp_LIBS@ \
@@ -607,6 +609,8 @@ nodist_usbguard_applet_qt_SOURCES=\
 	src/GUI.Qt/SessionBlocker.moc.cpp \
 	src/GUI.Qt/TargetDelegate.moc.cpp
 
+usbguard_applet_qt_LIBADD= -pthread
+
 usbguard_applet_qt_LDADD=\
 	$(top_builddir)/libusbguard.la \
 	@qt_LIBS@