diff --git a/libspark/Makefile.am b/libspark/Makefile.am
index 891b847..cde90bc 100644
--- a/libspark/Makefile.am
+++ b/libspark/Makefile.am
@@ -6,7 +6,7 @@ AM_CPPFLAGS = \
 	-I$(top_srcdir)/libeplayer3/include
 
 AM_CXXFLAGS = -fno-rtti -fno-exceptions -fno-strict-aliasing
-AM_LDFLAGS = -lpthread -lass
+AM_LDFLAGS = -lpthread -lass -lrt
 
 libspark_la_SOURCES = \
 	irmp.c \