diff --git a/src/vi_estimator/ba_base.cpp b/src/vi_estimator/ba_base.cpp
index f5d8f33..a4edc77 100644
--- a/src/vi_estimator/ba_base.cpp
+++ b/src/vi_estimator/ba_base.cpp
@@ -37,8 +37,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include <tbb/parallel_for.h>
 
-#include <mutex>
-
 namespace basalt {
 
 Sophus::SE3d BundleAdjustmentBase::computeRelPose(const Sophus::SE3d& T_w_i_h,