diff --git a/installer.py b/installer.py
index e4774225e..f7898cf11 100644
--- a/installer.py
+++ b/installer.py
@@ -1232,13 +1232,6 @@ def install_requirements():
     if args.skip_requirements and not args.requirements:
         return
     if int(sys.version_info.minor) >= 13:
-        # gcc 15 patch
-        backup_cmake_policy = os.environ.get('CMAKE_POLICY_VERSION_MINIMUM', None)
-        backup_cxxflags = os.environ.get('CXXFLAGS', None)
-        os.environ.setdefault('CMAKE_POLICY_VERSION_MINIMUM', '3.5')
-        os.environ.setdefault('CXXFLAGS', '-include cstdint')
-        os.environ.setdefault('CMAKE_POLICY_VERSION_MINIMUM', backup_cmake_policy)
-        os.environ.setdefault('CXXFLAGS', backup_cxxflags)
         install('audioop-lts')
     if not installed('diffusers', quiet=True): # diffusers are not installed, so run initial installation
         global quick_allowed # pylint: disable=global-statement
@@ -1248,7 +1241,14 @@ def install_requirements():
     if args.optional:
         quick_allowed = False
         install_optional()
+    # gcc 15 patch for sentencepiece
+    backup_cmake_policy = os.environ.get('CMAKE_POLICY_VERSION_MINIMUM', None)
+    backup_cxxflags = os.environ.get('CXXFLAGS', None)
+    os.environ.setdefault('CMAKE_POLICY_VERSION_MINIMUM', '3.5')
+    os.environ.setdefault('CXXFLAGS', '-include cstdint')
     install('git+https://github.com/google/sentencepiece#subdirectory=python', 'sentencepiece')
+    os.environ.setdefault('CMAKE_POLICY_VERSION_MINIMUM', backup_cmake_policy)
+    os.environ.setdefault('CXXFLAGS', backup_cxxflags)
     installed('torch', reload=True) # reload packages cache
     log.info('Install: verifying requirements')
     with open('requirements.txt', 'r', encoding='utf8') as f: