diff --git a/src/UnitTests/FileTest.h b/src/UnitTests/FileTest.h
index 33e58719e0c9b47d3ccc4efe41a1bd109f84ded9..36b969c8b5d10a253d2665ae9a401c1cdbb78def 100644
--- a/src/UnitTests/FileTest.h
+++ b/src/UnitTests/FileTest.h
@@ -11,7 +11,7 @@
 #include <TNL/File.h>
 
 #ifdef HAVE_GTEST 
-#include "gtest/gtest.h"
+#include <gtest/gtest.h>
 #endif
 
 #ifdef HAVE_CUDA
diff --git a/src/UnitTests/ListTest.cpp b/src/UnitTests/ListTest.cpp
index 6774d29f578e911d42e919d2dd8ff0b9f81a1610..617b214c1cbc9187de5c6f7cf9d5174d5a2936d2 100644
--- a/src/UnitTests/ListTest.cpp
+++ b/src/UnitTests/ListTest.cpp
@@ -9,7 +9,7 @@
 /* See Copyright Notice in tnl/Copyright */
 
 #ifdef HAVE_GTEST 
-#include "gtest/gtest.h"
+#include <gtest/gtest.h>
 #endif
 
 #include <TNL/Containers/List.h>
diff --git a/src/UnitTests/ObjectTest.cpp b/src/UnitTests/ObjectTest.cpp
index 3c495846d3de7b62e8c0efb5050970b2fc275fdc..6327f1f7ac558ad845161d71887155609d5d06cf 100644
--- a/src/UnitTests/ObjectTest.cpp
+++ b/src/UnitTests/ObjectTest.cpp
@@ -14,7 +14,7 @@
 #include <TNL/Containers/Array.h>
 
 #ifdef HAVE_GTEST 
-#include "gtest/gtest.h"
+#include <gtest/gtest.h>
 #endif
 
 using namespace TNL;
diff --git a/src/UnitTests/StringTest.cpp b/src/UnitTests/StringTest.cpp
index 3a0444ed64801402a95cec5a2ba80aa739e05163..c9725f81182f986a06c6ba7b128b0b4e08d2acca 100644
--- a/src/UnitTests/StringTest.cpp
+++ b/src/UnitTests/StringTest.cpp
@@ -9,7 +9,7 @@
 /* See Copyright Notice in tnl/Copyright */
 
 #ifdef HAVE_GTEST 
-#include "gtest/gtest.h"
+#include <gtest/gtest.h>
 #endif
 
 #include <TNL/String.h>
diff --git a/src/UnitTests/UniquePointerTest.cpp b/src/UnitTests/UniquePointerTest.cpp
index 579fd2569df3e9b6b68f7e21d426836a7a1abf12..0e1aedd5c4f0f7fd429a0c3d76d45ae5c007a117 100644
--- a/src/UnitTests/UniquePointerTest.cpp
+++ b/src/UnitTests/UniquePointerTest.cpp
@@ -21,7 +21,7 @@
 #include <TNL/Containers/StaticArray.h>
 
 #ifdef HAVE_GTEST 
-#include "gtest/gtest.h"
+#include <gtest/gtest.h>
 #endif
 
 using namespace TNL;