diff --git a/lib/fixed/ieee_proposed/Makefile.lib b/lib/fixed/ieee_proposed/Makefile.lib
index 3009937..3d74914 100644
--- a/lib/fixed/ieee_proposed/Makefile.lib
+++ b/lib/fixed/ieee_proposed/Makefile.lib
@@ -1,5 +1,5 @@
 SRCS += fixed_float_types_c.vhdl
-SRCS += fixed_pkg_c.vhdl
+SRCS += patch/fixed_pkg_c.vhdl
 
 # Compile
 TARGET := fixed_pkg
@@ -7,3 +7,12 @@ WORK_LIB := ieee_proposed
 
 include ../../../Common/make/ghdl.mk
 
+patch: fixed_pkg_c.patch
+	mkdir -p patch
+	cp fixed_pkg_c.vhdl patch/
+	patch -dpatch -p0 < fixed_pkg_c.patch
+	
+patch-clean:
+	rm -rf patch/
+	
+