diff --git a/depends/funcs.mk b/depends/funcs.mk
index 0251b913005..0d3bc2c5261 100644
--- a/depends/funcs.mk
+++ b/depends/funcs.mk
@@ -170,12 +170,18 @@ ifneq ($($(1)_ldflags),)
 $(1)_autoconf += LDFLAGS="$$($(1)_ldflags)"
 endif
 
+# We hardcode the library install path to "lib" to match the PKG_CONFIG_PATH
+# setting in depends/config.site.in, which also hardcodes "lib".
+# Without this setting, CMake by default would use the OS library
+# directory, which might be "lib64" or something else, not "lib", on multiarch systems.
 $(1)_cmake=env CC="$$($(1)_cc)" \
                CFLAGS="$$($(1)_cppflags) $$($(1)_cflags)" \
                CXX="$$($(1)_cxx)" \
                CXXFLAGS="$$($(1)_cppflags) $$($(1)_cxxflags)" \
                LDFLAGS="$$($(1)_ldflags)" \
-             cmake -DCMAKE_INSTALL_PREFIX:PATH="$$($($(1)_type)_prefix)" $$($(1)_config_opts)
+               cmake -DCMAKE_INSTALL_PREFIX:PATH="$$($($(1)_type)_prefix)" \
+               -DCMAKE_INSTALL_LIBDIR=lib/ \
+               $$($(1)_config_opts)
 ifeq ($($(1)_type),build)
 $(1)_cmake += -DCMAKE_INSTALL_RPATH:PATH="$$($($(1)_type)_prefix)/lib"
 else
diff --git a/depends/packages/capnp.mk b/depends/packages/capnp.mk
index 2465c8091bb..6d792db7113 100644
--- a/depends/packages/capnp.mk
+++ b/depends/packages/capnp.mk
@@ -5,15 +5,10 @@ $(package)_download_file=$(native_$(package)_download_file)
 $(package)_file_name=$(native_$(package)_file_name)
 $(package)_sha256_hash=$(native_$(package)_sha256_hash)
 
-# Hardcode library install path to "lib" to match the PKG_CONFIG_PATH
-# setting in depends/config.site.in, which also hardcodes "lib".
-# Without this setting, cmake by default would use the OS library
-# directory, which might be "lib64" or something else, not "lib", on multiarch systems.
 define $(package)_set_vars :=
   $(package)_config_opts := -DBUILD_TESTING=OFF
   $(package)_config_opts += -DWITH_OPENSSL=OFF
   $(package)_config_opts += -DWITH_ZLIB=OFF
-  $(package)_config_opts += -DCMAKE_INSTALL_LIBDIR=lib/
 endef
 
 define $(package)_config_cmds
diff --git a/depends/packages/libmultiprocess.mk b/depends/packages/libmultiprocess.mk
index d237f52dbb2..03527100d42 100644
--- a/depends/packages/libmultiprocess.mk
+++ b/depends/packages/libmultiprocess.mk
@@ -8,12 +8,7 @@ ifneq ($(host),$(build))
 $(package)_dependencies += native_capnp
 endif
 
-# Hardcode library install path to "lib" to match the PKG_CONFIG_PATH
-# setting in depends/config.site.in, which also hardcodes "lib".
-# Without this setting, cmake by default would use the OS library
-# directory, which might be "lib64" or something else, not "lib", on multiarch systems.
 define $(package)_set_vars :=
-$(package)_config_opts += -DCMAKE_INSTALL_LIBDIR=lib/
 $(package)_config_opts += -DCMAKE_POSITION_INDEPENDENT_CODE=ON
 ifneq ($(host),$(build))
 $(package)_config_opts := -DCAPNP_EXECUTABLE="$$(native_capnp_prefixbin)/capnp"