diff --git a/pytential/qbx/fmm.py b/pytential/qbx/fmm.py
index 956f5bc0b3fb665506044412a50c799fb7107b90..197b058cce3cc024bfab8c13ebf36c151b97606a 100644
--- a/pytential/qbx/fmm.py
+++ b/pytential/qbx/fmm.py
@@ -655,7 +655,6 @@ def assemble_performance_data(geo_data, uses_pde_expansions,
                 start, end = sep_smaller_list.starts[itgt_box:itgt_box+2]
                 nmp_eval += ntargets * (end-start)
 
-        # FIXME: This is missing a particle count multiplier
         result["mp_eval"] = nmp_eval * ncoeffs_fmm
 
     process_list3()
@@ -675,7 +674,7 @@ def assemble_performance_data(geo_data, uses_pde_expansions,
 
                 nform_local += nsources
 
-        result["form_local"] = nform_local * xlat_cost(p_fmm, p_fmm)
+        result["form_local"] = nform_local * ncoeffs_fmm
 
     process_list4()