diff --git a/include/flucoma/clients/nrt/PCAClient.hpp b/include/flucoma/clients/nrt/PCAClient.hpp
index 8c0112dc..92587871 100644
--- a/include/flucoma/clients/nrt/PCAClient.hpp
+++ b/include/flucoma/clients/nrt/PCAClient.hpp
@@ -93,6 +93,7 @@ class PCAClient : public FluidBaseClient,
     {
       auto srcDataSet = srcPtr->getDataSet();
       if (srcDataSet.size() == 0) return Error<double>(EmptyDataSet);
+      if (srcDataSet.size() < k) return Error<double>(SmallDataSet);
       if (!mAlgorithm.initialized()) return Error<double>(NoDataFitted);
       if (srcDataSet.pointSize() != mAlgorithm.dims())
         return Error<double>(WrongPointSize);