diff --git a/var/spack/repos/builtin/packages/opa-psm2/opa-psm2-install-prefix.patch b/var/spack/repos/builtin/packages/opa-psm2/opa-psm2-install-prefix.patch
deleted file mode 100644
index e03f7276b7..0000000000
--- a/var/spack/repos/builtin/packages/opa-psm2/opa-psm2-install-prefix.patch
+++ /dev/null
@@ -1,78 +0,0 @@
-diff -Naupr opa-psm2-PSM2_11.2.68/Makefile opa-psm2-PSM2_11.2.68-pathfix/Makefile
---- opa-psm2-PSM2_11.2.68/Makefile	2018-09-27 19:48:03.000000000 -0400
-+++ opa-psm2-PSM2_11.2.68-pathfix/Makefile	2019-06-07 11:34:37.658270976 -0400
-@@ -135,9 +135,9 @@ endif
- 
- ifndef LIBDIR
-    ifeq (${arch},x86_64)
--      INSTALL_LIB_TARG=/usr/lib64
-+      INSTALL_LIB_TARG=/lib64
-    else
--      INSTALL_LIB_TARG=/usr/lib
-+      INSTALL_LIB_TARG=/lib
-    endif
- else
-    INSTALL_LIB_TARG=${LIBDIR}
-@@ -177,7 +177,7 @@ UDEV_40_PSM_RULES := %{_udevrulesdir}/40
- 
- ifeq (fedora,$(DISTRO))
- 	# On Fedora, we change these two variables to these values:
--	LIBPSM2_COMPAT_CONF_DIR := /usr/lib
-+	LIBPSM2_COMPAT_CONF_DIR := /lib
- 	LIBPSM2_COMPAT_SYM_CONF_DIR := %{_prefix}/lib
- 	SPEC_FILE_RELEASE_DIST := %{?dist}
- 	UDEV_40_PSM_RULES :=#
-@@ -411,20 +411,20 @@ install: all
- 		ln -sf ${TARGLIB}.so.${MAJOR} ${TARGLIB}.so)
- 	install -D $(OUTDIR)/${TARGLIB}.a \
- 		${DESTDIR}${INSTALL_LIB_TARG}/${TARGLIB}.a
--	install -m 0644 -D psm2.h ${DESTDIR}/usr/include/psm2.h
--	install -m 0644 -D psm2_mq.h ${DESTDIR}/usr/include/psm2_mq.h
--	install -m 0644 -D psm2_am.h ${DESTDIR}/usr/include/psm2_am.h
-+	install -m 0644 -D psm2.h ${DESTDIR}/include/psm2.h
-+	install -m 0644 -D psm2_mq.h ${DESTDIR}/include/psm2_mq.h
-+	install -m 0644 -D psm2_am.h ${DESTDIR}/include/psm2_am.h
- ifneq (fedora,${DISTRO})
- 	install -m 0644 -D 40-psm.rules ${DESTDIR}$(UDEVDIR)/rules.d/40-psm.rules
- endif
- 	# The following files and dirs were part of the noship rpm:
--	mkdir -p ${DESTDIR}/usr/include/hfi1diag
--	mkdir -p ${DESTDIR}/usr/include/hfi1diag/linux-x86_64
--	install -m 0644 -D include/linux-x86_64/bit_ops.h ${DESTDIR}/usr/include/hfi1diag/linux-x86_64/bit_ops.h
--	install -m 0644 -D include/linux-x86_64/sysdep.h ${DESTDIR}/usr/include/hfi1diag/linux-x86_64/sysdep.h
--	install -m 0644 -D include/opa_udebug.h ${DESTDIR}/usr/include/hfi1diag/opa_udebug.h
--	install -m 0644 -D include/opa_debug.h ${DESTDIR}/usr/include/hfi1diag/opa_debug.h
--	install -m 0644 -D include/opa_intf.h ${DESTDIR}/usr/include/hfi1diag/opa_intf.h
-+	mkdir -p ${DESTDIR}/include/hfi1diag
-+	mkdir -p ${DESTDIR}/include/hfi1diag/linux-x86_64
-+	install -m 0644 -D include/linux-x86_64/bit_ops.h ${DESTDIR}/include/hfi1diag/linux-x86_64/bit_ops.h
-+	install -m 0644 -D include/linux-x86_64/sysdep.h ${DESTDIR}/include/hfi1diag/linux-x86_64/sysdep.h
-+	install -m 0644 -D include/opa_udebug.h ${DESTDIR}/include/hfi1diag/opa_udebug.h
-+	install -m 0644 -D include/opa_debug.h ${DESTDIR}/include/hfi1diag/opa_debug.h
-+	install -m 0644 -D include/opa_intf.h ${DESTDIR}/include/hfi1diag/opa_intf.h
- 	for h in opa_user_gen1.h opa_service_gen1.h opa_common_gen1.h ; do \
- 		sed -e 's/#include "opa_user_gen1.h"/#include "opa_user.h"/' \
- 			-e 's/#include "opa_common_gen1.h"/#include "opa_common.h"/' \
-@@ -434,14 +434,14 @@ endif
- 	done
- 	cat include/opa_user.h    $(TEMP_INST_DIR)/opa_user_gen1.h  > $(TEMP_INST_DIR)/opa_user.h
- 	cat include/opa_service.h $(TEMP_INST_DIR)/opa_service_gen1.h > $(TEMP_INST_DIR)/opa_service.h
--	install -m 0644 -D $(TEMP_INST_DIR)/opa_user.h    ${DESTDIR}/usr/include/hfi1diag/opa_user.h
--	install -m 0644 -D $(TEMP_INST_DIR)/opa_service.h ${DESTDIR}/usr/include/hfi1diag/opa_service.h
--	install -m 0644 -D $(TEMP_INST_DIR)/opa_common_gen1.h ${DESTDIR}/usr/include/hfi1diag/opa_common.h
--	install -m 0644 -D include/opa_byteorder.h ${DESTDIR}/usr/include/hfi1diag/opa_byteorder.h
--	install -m 0644 -D include/psm2_mock_testing.h ${DESTDIR}/usr/include/hfi1diag/psm2_mock_testing.h
--	install -m 0644 -D include/opa_revision.h ${DESTDIR}/usr/include/hfi1diag/opa_revision.h
--	install -m 0644 -D psmi_wrappers.h ${DESTDIR}/usr/include/hfi1diag/psmi_wrappers.h
--	install -m 0644 -D psm_hal_gen1/hfi1_deprecated_gen1.h ${DESTDIR}/usr/include/hfi1diag/hfi1_deprecated.h
-+	install -m 0644 -D $(TEMP_INST_DIR)/opa_user.h    ${DESTDIR}/include/hfi1diag/opa_user.h
-+	install -m 0644 -D $(TEMP_INST_DIR)/opa_service.h ${DESTDIR}/include/hfi1diag/opa_service.h
-+	install -m 0644 -D $(TEMP_INST_DIR)/opa_common_gen1.h ${DESTDIR}/include/hfi1diag/opa_common.h
-+	install -m 0644 -D include/opa_byteorder.h ${DESTDIR}/include/hfi1diag/opa_byteorder.h
-+	install -m 0644 -D include/psm2_mock_testing.h ${DESTDIR}/include/hfi1diag/psm2_mock_testing.h
-+	install -m 0644 -D include/opa_revision.h ${DESTDIR}/include/hfi1diag/opa_revision.h
-+	install -m 0644 -D psmi_wrappers.h ${DESTDIR}/include/hfi1diag/psmi_wrappers.h
-+	install -m 0644 -D psm_hal_gen1/hfi1_deprecated_gen1.h ${DESTDIR}/include/hfi1diag/hfi1_deprecated.h
- 	rm -fr $(TEMP_INST_DIR)
- 
- specfile: specfile_clean | $(OUTDIR)
diff --git a/var/spack/repos/builtin/packages/opa-psm2/package.py b/var/spack/repos/builtin/packages/opa-psm2/package.py
index 4b2e62a457..9f9a248bdd 100644
--- a/var/spack/repos/builtin/packages/opa-psm2/package.py
+++ b/var/spack/repos/builtin/packages/opa-psm2/package.py
@@ -7,11 +7,12 @@
 
 
 class OpaPsm2(MakefilePackage):
-    """ Intel Omni-Path Performance Scaled Messaging 2 (PSM2) library"""
+    """ Omni-Path Performance Scaled Messaging 2 (PSM2) library"""
 
-    homepage = "http://github.com/intel/opa-psm2"
-    url      = "https://github.com/intel/opa-psm2/archive/PSM2_10.3-8.tar.gz"
+    homepage = "http://github.com/cornelisnetworks/opa-psm2"
+    url      = "https://github.com/cornelisnetworks/opa-psm2/archive/PSM2_10.3-8.tar.gz"
 
+    version('11.2.185', sha256='8c0446e989feb4a3822791e4a3687060916f7c4612d1e8e493879be66f10db09')
     version('11.2.77', sha256='5cc33d1e19d871a5861efe0bb897526f404b4bf2b88ac58bb277db96ac5ecb54')
     version('11.2.68', sha256='42e16a14fc8c90b50855dcea46af3315bee32fb1ae89d83060f9b2ebdce1ec26')
     version('10.3-37',  sha256='43e46f6fb345db67bb45b48e2b2bb05f590f7ccbc3ee337b33312043b46946b9')
@@ -26,13 +27,8 @@ class OpaPsm2(MakefilePackage):
 
     depends_on('numactl')
 
-    # patch to prevent opa-psm2 from adding an additional "usr/"
-    #   subdirectory within the installation prefix, which breaks paths for
-    #   dependent packages like libfabric
-    patch('opa-psm2-install-prefix.patch', when='@11.2.68:')
-
     # patch to get the Makefile to use the spack compiler wrappers
-    patch('opa-psm2-compiler.patch', when='@11.2.68:',
+    patch('opa-psm2-compiler.patch', when='@11.2.68:11.2.77',
           sha256='fe31fda9aaee13acb87d178af2282446196d2cc0b21163034573706110b2e2d6')
 
     def setup_build_environment(self, env):
@@ -46,7 +42,8 @@ def edit(self, spec, prefix):
         # Change the makefile so libraries and includes are not
         # placed under $PREFIX/usr
         env['LIBDIR'] = '/lib'
-        filter_file(r'${DESTDIR}/usr', '${DESTDIR}', 'Makefile')
+        filter_file(r'${DESTDIR}/usr', '${DESTDIR}', 'Makefile', string=True)
+        filter_file(r'/usr/lib', '/lib', 'Makefile', string=True)
 
         if '~avx2' in spec:
             env['PSM_DISABLE_AVX2'] = 'True'