diff --git a/cad/iverilog/distinfo b/cad/iverilog/distinfo
index b1409009d7cf..1ab4d3cb3c30 100644
--- a/cad/iverilog/distinfo
+++ b/cad/iverilog/distinfo
@@ -1,9 +1,9 @@
-$NetBSD: distinfo,v 1.2 2020/02/18 16:40:18 joerg Exp $
+$NetBSD: distinfo,v 1.3 2020/02/18 17:44:26 joerg Exp $
 
 SHA1 (verilog-10.1.1.tar.gz) = 7f4cead8cabb90cc4525951357c43866ca710749
 RMD160 (verilog-10.1.1.tar.gz) = 77c933b712ab027b13a81e3eead7ee4f565741b7
 SHA512 (verilog-10.1.1.tar.gz) = a57fdce3d870be8ce39eb3050dabd5a2d4d491c657b85ccbf775bef7fa9a6889a18bf4d2508341ef2cc17d872b5d6c802d4fd8585e4ec7952526699ebb24bfac
 Size (verilog-10.1.1.tar.gz) = 1684925 bytes
 SHA1 (patch-aa) = cf075110416f6db0892129796cd83b8ae8de55fa
-SHA1 (patch-ad) = ec93d242996f149ec0b9fabd58c925efcc8b6ac6
+SHA1 (patch-ad) = bf7d227ed3b321021d8aff54cd008f4b2a1557b9
 SHA1 (patch-cadpli_Makefile) = ed21a5f529ac449c26b831cbd5fde052d9ed5466
diff --git a/cad/iverilog/patches/patch-ad b/cad/iverilog/patches/patch-ad
index c0fe5cb0b21c..33989a451908 100644
--- a/cad/iverilog/patches/patch-ad
+++ b/cad/iverilog/patches/patch-ad
@@ -1,4 +1,4 @@
-$NetBSD: patch-ad,v 1.2 2020/02/18 16:40:18 joerg Exp $
+$NetBSD: patch-ad,v 1.3 2020/02/18 17:44:26 joerg Exp $
 
 make sure no one sneaks a -O* in on us via one of these variables
 set in the environment
@@ -15,7 +15,7 @@ set in the environment
 +CPPFLAGS_NOOPT=$(CPPFLAGS:-O%=)
 +CXXFLAGS_NOOPT=$(CXXFLAGS:-O%=)
 +
-+parse.o: parse.h
++parse.o: parse.cc
 +	@[ -d dep ] || mkdir dep
 +	$(CXX_NOOPT) $(CPPFLAGS_NOOPT) $(CXXFLAGS_NOOPT) -MD -c $< -o $*.o
 +	mv $*.d dep/$*.d