diff --git a/samples/frame_generator.cpp b/samples/frame_generator.cpp
index 00caaa429b..03e7656916 100644
--- a/samples/frame_generator.cpp
+++ b/samples/frame_generator.cpp
@@ -428,7 +428,7 @@ int main(int argc, char* argv[]) {
     for (int i = option_index; i < argc; i++) {
         utils::Path filename = argv[i];
         if (!filename.exists()) {
-            std::cerr << "file " << argv[option_index] << " not found!" << std::endl;
+            std::cerr << "file " << argv[i] << " not found!" << std::endl;
             return 1;
         }
         g_filenames.push_back(filename);
diff --git a/samples/gltf_viewer.cpp b/samples/gltf_viewer.cpp
index cd81f18450..35e70839fa 100644
--- a/samples/gltf_viewer.cpp
+++ b/samples/gltf_viewer.cpp
@@ -168,7 +168,7 @@ int main(int argc, char* argv[]) {
     for (int i = option_index; i < argc; i++) {
         utils::Path filename = argv[i];
         if (!filename.exists()) {
-            std::cerr << "file " << argv[option_index] << " not found!" << std::endl;
+            std::cerr << "file " << argv[i] << " not found!" << std::endl;
             return 1;
         }
         g_filenames.push_back(filename);
diff --git a/samples/lightbulb.cpp b/samples/lightbulb.cpp
index 0a80fd8ca3..9dba8aedee 100644
--- a/samples/lightbulb.cpp
+++ b/samples/lightbulb.cpp
@@ -423,7 +423,7 @@ int main(int argc, char* argv[]) {
     for (int i = option_index; i < argc; i++) {
         utils::Path filename = argv[i];
         if (!filename.exists()) {
-            std::cerr << "file " << argv[option_index] << " not found!" << std::endl;
+            std::cerr << "file " << argv[i] << " not found!" << std::endl;
             return 1;
         }
         g_filenames.push_back(filename);
diff --git a/samples/material_sandbox.cpp b/samples/material_sandbox.cpp
index a51f3e4322..11235182f0 100644
--- a/samples/material_sandbox.cpp
+++ b/samples/material_sandbox.cpp
@@ -389,7 +389,7 @@ int main(int argc, char* argv[]) {
     for (int i = option_index; i < argc; i++) {
         utils::Path filename = argv[i];
         if (!filename.exists()) {
-            std::cerr << "file " << argv[option_index] << " not found!" << std::endl;
+            std::cerr << "file " << argv[i] << " not found!" << std::endl;
             return 1;
         }
         g_filenames.push_back(filename);
diff --git a/samples/sample_cloth.cpp b/samples/sample_cloth.cpp
index 81cf26e8ed..fe1ca452eb 100644
--- a/samples/sample_cloth.cpp
+++ b/samples/sample_cloth.cpp
@@ -247,7 +247,7 @@ int main(int argc, char* argv[]) {
     for (int i = option_index; i < argc; i++) {
         utils::Path filename = argv[i];
         if (!filename.exists()) {
-            std::cerr << "file " << argv[option_index] << " not found!" << std::endl;
+            std::cerr << "file " << argv[i] << " not found!" << std::endl;
             return 1;
         }
         g_filenames.push_back(filename);
diff --git a/samples/sample_full_pbr.cpp b/samples/sample_full_pbr.cpp
index 8426f7016a..50f46542fa 100644
--- a/samples/sample_full_pbr.cpp
+++ b/samples/sample_full_pbr.cpp
@@ -377,7 +377,7 @@ int main(int argc, char* argv[]) {
     for (int i = option_index; i < argc; i++) {
         utils::Path filename = argv[i];
         if (!filename.exists()) {
-            std::cerr << "file " << argv[option_index] << " not found!" << std::endl;
+            std::cerr << "file " << argv[i] << " not found!" << std::endl;
             return 1;
         }
         g_filenames.push_back(filename);
diff --git a/samples/sample_normal_map.cpp b/samples/sample_normal_map.cpp
index 23c23bc11b..b741273f33 100644
--- a/samples/sample_normal_map.cpp
+++ b/samples/sample_normal_map.cpp
@@ -337,7 +337,7 @@ int main(int argc, char* argv[]) {
     for (int i = option_index; i < argc; i++) {
         utils::Path filename = argv[i];
         if (!filename.exists()) {
-            std::cerr << "file " << argv[option_index] << " not found!" << std::endl;
+            std::cerr << "file " << argv[i] << " not found!" << std::endl;
             return 1;
         }
         g_filenames.push_back(filename);