diff --git a/make/defs.mk b/make/defs.mk
index cca96eb0..7315f3cc 100644
--- a/make/defs.mk
+++ b/make/defs.mk
@@ -226,6 +226,7 @@ LINKS_SO              += $(shell echo $(LIB_SO) | sed -e "s/\.so\..*$$/.so/" | g
 INSTALLED_LINKS_SO    += $(shell echo $(INSTALLED_LIB_SO) | sed -e "s/\.so\..*$$/.so/" | grep -v $(INSTALLED_LIB_SO))
 INSTALLED_LIB_SO       = $(INSTALL_LIBDIR)/lib$(LIBNAME).$(SO_SUFFIX)
 INSTALLED_LIB_A        = $(INSTALL_LIBDIR)/lib$(LIBNAME).a
+INSTALLED_DEF          = $(addprefix $(INSTALL_LIBDIR)/,$(wildcard *.lib *.def *.exp))
 else
 LIB_A                  = $(BUILD_LIBDIR)/lib$(LIBNAME)-static.a
 SO_SUFFIX              = dll
@@ -238,7 +239,8 @@ endif
 INSTALLED_SHOBJS      += $(addprefix $(INSTALL_LIBDIR)/,$(SHOBJS))
 INSTALLED_ALL_LIBS     = $(addprefix $(INSTALL_LIBDIR)/,$(wildcard *.a))
 INSTALLED_LIB          = $(INSTALLED_LIB_SO) $(INSTALLED_SHOBJS) \
-	$(INSTALLED_LINKS_SO) $(sort $(INSTALLED_LIB_A) $(INSTALLED_ALL_LIBS))
+	$(INSTALLED_LINKS_SO) $(sort $(INSTALLED_LIB_A) $(INSTALLED_ALL_LIBS)) \
+	$(INSTALLED_DEF)
 BUILD_LIB             += $(LIB_SO)
 
 # -- PI