diff --git a/engine/Makefile.in b/engine/Makefile.in
index 7f3892fd..cd99689a 100644
--- a/engine/Makefile.in
+++ b/engine/Makefile.in
@@ -9,7 +9,7 @@ CXX := @CXX@ -Wall
 SED := sed
 DEFS :=
 LIBAUX:= @DLOPEN_LIB@
-LIBTHR:= -lpthread
+LIBTHR:= @THREAD_LIB@
 INCLUDES := -I.. -I@top_srcdir@
 CFLAGS := @CFLAGS@ @MODULE_CFLAGS@ @INLINE_FLAGS@
 CPPFLAGS := @CFLAGS@ @MODULE_CPPFLAGS@ @INLINE_FLAGS@