diff --git a/Makefile b/Makefile
index 320fc680..5756e630 100644
--- a/Makefile
+++ b/Makefile
@@ -120,7 +120,7 @@ clean:
 #------------------------------------------------------------------------------
 # make install is validated only for Linux, OSX, Hurd and some BSD targets
 #------------------------------------------------------------------------------
-ifneq (,$(filter $(shell uname),Linux Darwin GNU/kFreeBSD GNU FreeBSD DragonFly NetBSD MSYS_NT))
+ifneq (,$(filter $(shell uname),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD DragonFly NetBSD MSYS_NT))
 
 HOST_OS = POSIX
 CMAKE_PARAMS = -DZSTD_BUILD_CONTRIB:BOOL=ON -DZSTD_BUILD_STATIC:BOOL=ON -DZSTD_BUILD_TESTS:BOOL=ON -DZSTD_ZLIB_SUPPORT:BOOL=ON -DZSTD_LZMA_SUPPORT:BOOL=ON
diff --git a/lib/Makefile b/lib/Makefile
index cdfdc5cd..72335a5a 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -134,7 +134,7 @@ LIBDIR      ?= $(libdir)
 includedir  ?= $(PREFIX)/include
 INCLUDEDIR  ?= $(includedir)
 
-ifneq (,$(filter $(shell uname),OpenBSD FreeBSD NetBSD DragonFly))
+ifneq (,$(filter $(shell uname),FreeBSD NetBSD DragonFly))
 PKGCONFIGDIR ?= $(PREFIX)/libdata/pkgconfig
 else
 PKGCONFIGDIR ?= $(LIBDIR)/pkgconfig