diff --git a/sysinfo/os/pe.mk b/sysinfo/os/pe.mk
index e8e1759..c3c5ba0 100644
--- a/sysinfo/os/pe.mk
+++ b/sysinfo/os/pe.mk
@@ -1,3 +1,7 @@
+DSO_REF_VER      = $(IMPLIB_VER)
+DSO_REF_SONAME   = $(IMPLIB_SONAME)
+DSO_REF_SOLINK   = $(IMPLIB_SOLINK)
+
 LDFLAGS_IMPLIB	+= -Wl,--output-def
 LDFLAGS_IMPLIB	+= -Wl,$(IMPLIB_DEF)
 LDFLAGS_SHARED	+= $(LDFLAGS_IMPLIB)