diff --git a/docs/build.gradle b/docs/build.gradle
index 4104c6db87..d3bb3dc3ad 100644
--- a/docs/build.gradle
+++ b/docs/build.gradle
@@ -148,6 +148,7 @@ doxygen {
 
     // Save space by excluding protobuf and eigen
     exclude 'Eigen/**'
+    exclude 'unsupported/**'
     exclude 'google/protobuf/**'
 
     exclude '**/.clang-tidy'