diff --git a/mesonbuild/cmake/interpreter.py b/mesonbuild/cmake/interpreter.py
index 54c9ae696916..bdaa6d54c2f3 100644
--- a/mesonbuild/cmake/interpreter.py
+++ b/mesonbuild/cmake/interpreter.py
@@ -786,12 +786,12 @@ def log(self) -> None:
         mlog.log('  -- depends:      ', mlog.bold(str(self.depends)))
 
 class CMakeInterpreter:
-    def __init__(self, subdir: Path, install_prefix: Path, env: 'Environment', backend: 'Backend'):
+    def __init__(self, subdir: Path, env: 'Environment', backend: 'Backend'):
         self.subdir = subdir
         self.src_dir = Path(env.get_source_dir(), subdir)
         self.build_dir_rel = subdir / '__CMake_build'
         self.build_dir = Path(env.get_build_dir()) / self.build_dir_rel
-        self.install_prefix = install_prefix
+        self.install_prefix = Path(T.cast('str', env.coredata.optstore.get_value_for(OptionKey('prefix'))))
         self.env = env
         self.for_machine = MachineChoice.HOST # TODO make parameter
         self.backend_name = backend.name
@@ -842,6 +842,8 @@ def configure(self, extra_cmake_options: T.List[str]) -> CMakeExecutor:
         cmake_args = []
         cmake_args += cmake_get_generator_args(self.env)
         cmake_args += [f'-DCMAKE_INSTALL_PREFIX={self.install_prefix}']
+        libdir = self.env.coredata.optstore.get_value_for(OptionKey('libdir'))
+        cmake_args += [f'-DCMAKE_INSTALL_LIBDIR={libdir}']
         cmake_args += extra_cmake_options
         if not any(arg.startswith('-DCMAKE_BUILD_TYPE=') for arg in cmake_args):
             # Our build type is favored over any CMAKE_BUILD_TYPE environment variable
diff --git a/mesonbuild/interpreter/interpreter.py b/mesonbuild/interpreter/interpreter.py
index 9bfc9be23831..688fd2dba2a1 100644
--- a/mesonbuild/interpreter/interpreter.py
+++ b/mesonbuild/interpreter/interpreter.py
@@ -1049,12 +1049,10 @@ def _do_subproject_cmake(self, subp_name: str, subdir: str,
                              kwargs: kwtypes.DoSubproject) -> SubprojectHolder:
         from ..cmake import CMakeInterpreter
         with mlog.nested(subp_name):
-            prefix = self.coredata.optstore.get_value_for('prefix')
-
             from ..modules.cmake import CMakeSubprojectOptions
             kw_opts = kwargs.get('options') or CMakeSubprojectOptions()
             cmake_options = kwargs.get('cmake_options', []) + kw_opts.cmake_options
-            cm_int = CMakeInterpreter(Path(subdir), Path(prefix), self.build.environment, self.backend)
+            cm_int = CMakeInterpreter(Path(subdir), self.build.environment, self.backend)
             cm_int.initialise(cmake_options)
             cm_int.analyse()