diff --git a/libgeneric-pc/Makefile.am b/libgeneric-pc/Makefile.am
index e2b6a5e..144c498 100644
--- a/libgeneric-pc/Makefile.am
+++ b/libgeneric-pc/Makefile.am
@@ -11,7 +11,7 @@ AM_CPPFLAGS += \
 AM_CXXFLAGS = -fno-rtti -fno-exceptions -fno-strict-aliasing
 
 AM_LDFLAGS = \
-	-lao \
+	-lao -lrt \
 	-lOpenThreads \
 	@AVFORMAT_LIBS@ \
 	@AVUTIL_LIBS@ \