diff --git a/Source/reactions/Castro_react.H b/Source/reactions/Castro_react.H
index a98c2e228e..815e0a2774 100644
--- a/Source/reactions/Castro_react.H
+++ b/Source/reactions/Castro_react.H
@@ -1,7 +1,7 @@
 ///
 /// Perform any old-time reactions.
 ///
-    advance_status do_old_reactions (Real time, Real dt);  // NOLINT(readability-convert-member-functions-to-static)
+    advance_status do_old_reactions (Real time, Real dt);
 
 ///
 /// Perform any new-time reactions.
diff --git a/Source/reactions/Castro_react.cpp b/Source/reactions/Castro_react.cpp
index bc070c7359..3e6ff3949b 100644
--- a/Source/reactions/Castro_react.cpp
+++ b/Source/reactions/Castro_react.cpp
@@ -12,8 +12,8 @@ using namespace amrex;
 #ifndef TRUE_SDC
 
 advance_status
-Castro::do_old_reactions (Real time, Real dt)
-{
+Castro::do_old_reactions (Real time, Real dt) {  // NOLINT(readability-convert-member-functions-to-static)
+
     amrex::ignore_unused(time);
     amrex::ignore_unused(dt);