diff --git a/include/core/math/SE3.h b/include/core/math/SE3.h
index 0515376e459be99732f24d97ea9667d7616a2177..02c67109f0a75224d9e4c36ee24b2cb33a995bec 100644
--- a/include/core/math/SE3.h
+++ b/include/core/math/SE3.h
@@ -35,7 +35,7 @@
 
 namespace wolf
 {
-namespace three_D {
+namespace SE3 {
 using namespace Eigen;
 
 template<typename D1, typename D2>
diff --git a/test/gtest_SE3.cpp b/test/gtest_SE3.cpp
index c922ae4b0b6e80ddcf75090d09bcf04d58406e1e..357c36f2e90977342fd089e968ea280d12d2d08f 100644
--- a/test/gtest_SE3.cpp
+++ b/test/gtest_SE3.cpp
@@ -13,7 +13,7 @@
 
 using namespace Eigen;
 using namespace wolf;
-using namespace three_D;
+using namespace SE3;
 
 TEST(SE3, exp_0)
 {