diff --git a/util/ectool/Makefile b/util/ectool/Makefile
index 8aa1415a56..234e931e4a 100644
--- a/util/ectool/Makefile
+++ b/util/ectool/Makefile
@@ -25,7 +25,7 @@ ifeq ($(shell uname -o 2>/dev/null), Cygwin)
 LDFLAGS = -lioperm
 endif
 
-ifeq ($(OS_ARCH), NetBSD)
+ifeq ($(OS_ARCH), $(filter $(OS_ARCH), NetBSD OpenBSD))
 LDFLAGS = -l$(shell uname -p)
 endif
 
diff --git a/util/ectool/ec.c b/util/ectool/ec.c
index 098e8126d9..08b6b1b37d 100644
--- a/util/ectool/ec.c
+++ b/util/ectool/ec.c
@@ -17,12 +17,12 @@
 #include <stdint.h>
 #include <stdlib.h>
 #include <unistd.h>
-#ifndef __NetBSD__
+#if !(defined __NetBSD__ || defined __OpenBSD__)
 #include <sys/io.h>
 #endif
 #include "ec.h"
 
-#ifdef __NetBSD__
+#if defined __NetBSD__ || defined __OpenBSD__
 #include <machine/sysarch.h>
 static uint8_t inb(unsigned port)
 {
diff --git a/util/ectool/ectool.c b/util/ectool/ectool.c
index 50ac30b5e5..6d9668ded2 100644
--- a/util/ectool/ectool.c
+++ b/util/ectool/ectool.c
@@ -18,14 +18,24 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include <getopt.h>
-#ifndef __NetBSD__
+#if !(defined __NetBSD__ || defined __OpenBSD__)
 #include <sys/io.h>
 #endif
 #include <ec.h>
 #include <stdlib.h>
 
-#ifdef __NetBSD__
+#if defined __NetBSD__ || defined __OpenBSD__
+
 #include <machine/sysarch.h>
+
+# if defined __i386__
+#  define iopl i386_iopl
+# elif defined __NetBSD__
+#  define iopl x86_64_iopl
+# else
+#  define iopl amd64_iopl
+# endif
+
 #endif
 
 
@@ -113,15 +123,7 @@ int main(int argc, char *argv[])
 		}
 	}
 
-#ifdef __NetBSD__
-# ifdef __i386__
-	if (i386_iopl(3)) {
-# else
-	if (x86_64_iopl(3)) {
-# endif
-#else
 	if (iopl(3)) {
-#endif
 		printf("You need to be root.\n");
 		exit(1);
 	}