diff --git a/zlib/Makefile.am b/zlib/Makefile.am
index 0081c93a2ae7341f26279509f101a0bd0439017c..af7d60d8568907d980c5ef7a248559320d02702f 100644
--- a/zlib/Makefile.am
+++ b/zlib/Makefile.am
@@ -18,6 +18,8 @@
 
 INCLUDES=		-I$(top_builddir)/include -I$(top_srcdir)/include
 
+LIBS= $(NON_THREADED_LIBS)
+
 pkglib_LTLIBRARIES=libz.la
 
 libz_la_LDFLAGS= -version-info 3:3:2