diff --git a/src/Makefile b/src/Makefile
index 02b8fa0f..d99229ee 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -73,6 +73,7 @@ else ifeq ($(os),OpenBSD)
     LIBS += -lncursesw
     CPPFLAGS += -D'KAK_BIN_PATH="$(bindir)/kak"' -I/usr/local/include
     LDFLAGS += -L/usr/local/lib
+    mandir := $(DESTDIR)$(PREFIX)/man/man1
 else ifneq (,$(findstring CYGWIN,$(os)))
     CPPFLAGS += -D_XOPEN_SOURCE=700
     LIBS += -lncursesw -ldbghelp