diff --git a/src/rose/rose_build_misc.cpp b/src/rose/rose_build_misc.cpp
index c2f9f580..b9aeabd0 100644
--- a/src/rose/rose_build_misc.cpp
+++ b/src/rose/rose_build_misc.cpp
@@ -1309,7 +1309,7 @@ bool canImplementGraphs(const RoseBuildImpl &tbi) {
         }
         if (g[v].left.graph) {
             assert(g[v].left.graph->kind
-                   == tbi.isRootSuccessor(v) ? NFA_PREFIX : NFA_INFIX);
+                   == (tbi.isRootSuccessor(v) ? NFA_PREFIX : NFA_INFIX));
             if (!isImplementableNFA(*g[v].left.graph, nullptr, tbi.cc)) {
                 DEBUG_PRINTF("nfa prefix %zu failed (%zu vertices)\n", g[v].idx,
                              num_vertices(*g[v].left.graph));
diff --git a/src/rose/rose_build_role_aliasing.cpp b/src/rose/rose_build_role_aliasing.cpp
index c2366f0e..b223fa92 100644
--- a/src/rose/rose_build_role_aliasing.cpp
+++ b/src/rose/rose_build_role_aliasing.cpp
@@ -786,8 +786,8 @@ void pruneReportIfUnused(const RoseBuildImpl &build, shared_ptr<NGHolder> h,
         // unimplementable.
 
         DEBUG_PRINTF("report %u has been merged away, pruning\n", report);
-        assert(h->kind == build.isRootSuccessor(*verts.begin()) ? NFA_PREFIX
-                                                                : NFA_INFIX);
+        assert(h->kind == (build.isRootSuccessor(*verts.begin()) ? NFA_PREFIX
+                                                                 : NFA_INFIX));
         unique_ptr<NGHolder> h_new = cloneHolder(*h);
         pruneReport(*h_new, report);