diff --git a/src/fmindex-collection/utils.h b/src/fmindex-collection/utils.h
index 6b6beb22..759d42c1 100644
--- a/src/fmindex-collection/utils.h
+++ b/src/fmindex-collection/utils.h
@@ -24,7 +24,7 @@
 namespace fmindex_collection {
 
 inline auto createSA64(std::span<uint8_t const> input, size_t threadNbr) -> std::vector<uint64_t> {
-    assert(input.size() < std::numeric_limits<int64_t>::max());
+    assert(uint64_t{input.size()} < std::numeric_limits<int64_t>::max());
     auto sa = std::vector<uint64_t>(input.size());
     if (input.size() == 0) {
         return sa;
diff --git a/src/test_fmindex-collection/bitvector/checkBitvector.cpp b/src/test_fmindex-collection/bitvector/checkBitvector.cpp
index a122c529..b32ddf79 100644
--- a/src/test_fmindex-collection/bitvector/checkBitvector.cpp
+++ b/src/test_fmindex-collection/bitvector/checkBitvector.cpp
@@ -5,7 +5,6 @@
 #include <fmindex-collection/utils.h>
 #include <fstream>
 #include <nanobench.h>
-#include <reflect>
 
 #include "allBitVectors.h"
 
@@ -20,6 +19,7 @@ static auto getName() {
     return str;
 }
 #else
+#include <reflect>
 template <typename T>
 static auto getName() {
     return std::string{reflect::type_name<T>()};
diff --git a/src/test_fmindex-collection/rankvector/checkRankVector.cpp b/src/test_fmindex-collection/rankvector/checkRankVector.cpp
index fa31f9ee..f5a4f8f7 100644
--- a/src/test_fmindex-collection/rankvector/checkRankVector.cpp
+++ b/src/test_fmindex-collection/rankvector/checkRankVector.cpp
@@ -5,7 +5,6 @@
 #include <fmindex-collection/utils.h>
 #include <fstream>
 #include <nanobench.h>
-#include <reflect>
 
 #include "allRankVectors.h"
 
@@ -20,6 +19,7 @@ static auto getName() {
     return str;
 }
 #else
+#include <reflect>
 template <typename T>
 static auto getName() {
     return std::string{reflect::type_name<T>()};