diff --git a/builder/builder-cache.c b/builder/builder-cache.c
index 510b29ca9..c417a6532 100644
--- a/builder/builder-cache.c
+++ b/builder/builder-cache.c
@@ -1126,6 +1126,18 @@ builder_cache_checksum_boolean (BuilderCache *self,
     g_checksum_update (self->checksum, (const guchar *) "\0", 1);
 }
 
+/* Only add to cache if true. This means we can add
+   these things compatibly without invalidating the cache.
+   This is useful if false means no change from what was
+   before */
+void
+builder_cache_checksum_compat_boolean (BuilderCache *self,
+                                       gboolean      val)
+{
+  if (val)
+    builder_cache_checksum_boolean (self, val);
+}
+
 void
 builder_cache_checksum_uint32 (BuilderCache *self,
                                guint32       val)
diff --git a/builder/builder-cache.h b/builder/builder-cache.h
index edbfd6a69..0c2aa66b5 100644
--- a/builder/builder-cache.h
+++ b/builder/builder-cache.h
@@ -69,6 +69,8 @@ void builder_cache_checksum_compat_strv (BuilderCache *self,
                                          char        **strv);
 void builder_cache_checksum_boolean (BuilderCache *self,
                                      gboolean      val);
+void builder_cache_checksum_compat_boolean (BuilderCache *self,
+                                            gboolean      val);
 void builder_cache_checksum_uint32 (BuilderCache *self,
                                     guint32       val);
 void builder_cache_checksum_data (BuilderCache *self,