diff --git a/material/plugins/blog/plugin.py b/material/plugins/blog/plugin.py
index fe365ba2c..c456336c5 100644
--- a/material/plugins/blog/plugin.py
+++ b/material/plugins/blog/plugin.py
@@ -52,10 +52,18 @@ from material.plugins.blog.config import BlogConfig
 class BlogPlugin(BasePlugin[BlogConfig]):
     supports_multiple_instances = True
 
+    # Initialize plugin
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+        # Initialize variables for incremental builds
+        self.is_serve = False
+        self.is_dirtyreload = False
+        self.is_dirty = False
+
     # Determine whether we're running under dirty reload
     def on_startup(self, *, command, dirty):
         self.is_serve = (command == "serve")
-        self.is_dirtyreload = False
         self.is_dirty = dirty
 
     # Initialize plugin
diff --git a/material/plugins/info/plugin.py b/material/plugins/info/plugin.py
index f6cdc704a..b3b82e435 100644
--- a/material/plugins/info/plugin.py
+++ b/material/plugins/info/plugin.py
@@ -42,6 +42,13 @@ from material.plugins.info.config import InfoConfig
 # Info plugin
 class InfoPlugin(BasePlugin[InfoConfig]):
 
+    # Initialize plugin
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+        # Initialize variables for incremental builds
+        self.is_serve = False
+
     # Determine whether we're serving
     def on_startup(self, *, command, dirty):
         self.is_serve = (command == "serve")
diff --git a/material/plugins/search/plugin.py b/material/plugins/search/plugin.py
index 731d653b0..b1103b10e 100644
--- a/material/plugins/search/plugin.py
+++ b/material/plugins/search/plugin.py
@@ -42,14 +42,20 @@ except ImportError:
 # Search plugin
 class SearchPlugin(BasePlugin[SearchConfig]):
 
-    # Determine whether we're running under dirty reload
-    def on_startup(self, *, command, dirty):
+    # Initialize plugin
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+        # Initialize variables for incremental builds
         self.is_dirtyreload = False
-        self.is_dirty = dirty
 
         # Initialize search index cache
         self.search_index_prev = None
 
+    # Determine whether we're serving
+    def on_startup(self, *, command, dirty):
+        self.is_dirty = dirty
+
     # Initialize plugin
     def on_config(self, config):
         if not self.config.lang:
diff --git a/src/plugins/blog/plugin.py b/src/plugins/blog/plugin.py
index fe365ba2c..c456336c5 100644
--- a/src/plugins/blog/plugin.py
+++ b/src/plugins/blog/plugin.py
@@ -52,10 +52,18 @@ from material.plugins.blog.config import BlogConfig
 class BlogPlugin(BasePlugin[BlogConfig]):
     supports_multiple_instances = True
 
+    # Initialize plugin
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+        # Initialize variables for incremental builds
+        self.is_serve = False
+        self.is_dirtyreload = False
+        self.is_dirty = False
+
     # Determine whether we're running under dirty reload
     def on_startup(self, *, command, dirty):
         self.is_serve = (command == "serve")
-        self.is_dirtyreload = False
         self.is_dirty = dirty
 
     # Initialize plugin
diff --git a/src/plugins/info/plugin.py b/src/plugins/info/plugin.py
index f6cdc704a..b3b82e435 100644
--- a/src/plugins/info/plugin.py
+++ b/src/plugins/info/plugin.py
@@ -42,6 +42,13 @@ from material.plugins.info.config import InfoConfig
 # Info plugin
 class InfoPlugin(BasePlugin[InfoConfig]):
 
+    # Initialize plugin
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+        # Initialize variables for incremental builds
+        self.is_serve = False
+
     # Determine whether we're serving
     def on_startup(self, *, command, dirty):
         self.is_serve = (command == "serve")
diff --git a/src/plugins/search/plugin.py b/src/plugins/search/plugin.py
index 731d653b0..b1103b10e 100644
--- a/src/plugins/search/plugin.py
+++ b/src/plugins/search/plugin.py
@@ -42,14 +42,20 @@ except ImportError:
 # Search plugin
 class SearchPlugin(BasePlugin[SearchConfig]):
 
-    # Determine whether we're running under dirty reload
-    def on_startup(self, *, command, dirty):
+    # Initialize plugin
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+        # Initialize variables for incremental builds
         self.is_dirtyreload = False
-        self.is_dirty = dirty
 
         # Initialize search index cache
         self.search_index_prev = None
 
+    # Determine whether we're serving
+    def on_startup(self, *, command, dirty):
+        self.is_dirty = dirty
+
     # Initialize plugin
     def on_config(self, config):
         if not self.config.lang: