diff --git a/lib/base/Makefile.am b/lib/base/Makefile.am
index 66e8bce72..ee5f120d3 100644
--- a/lib/base/Makefile.am
+++ b/lib/base/Makefile.am
@@ -24,6 +24,8 @@ if versionscript
 libheimbase_la_LDFLAGS += $(LDFLAGS_VERSION_SCRIPT)$(srcdir)/version-script.map
 endif
 
+libheimbase_la_LIBADD = $(PTHREAD_LIBADD)
+
 include_HEADERS	= heimbase.h
 
 dist_libheimbase_la_SOURCES =	\