diff --git a/Makefile b/Makefile
index b8ca504f09..e67d0e7822 100644
--- a/Makefile
+++ b/Makefile
@@ -180,6 +180,7 @@ ifneq (,$(findstring arm,$(shell uname -m)))
 	ARM_SHA1 = YesPlease
 endif
 ifeq ($(shell uname -s),OpenBSD)
+	NO_STRCASESTR = YesPlease
 	NEEDS_LIBICONV = YesPlease
 	PLATFORM_DEFINES += -I/usr/local/include -L/usr/local/lib
 endif