diff --git a/src/systemcmds/tests/test_matrix.cpp b/src/systemcmds/tests/test_matrix.cpp
index eef8451cd3..5285591f04 100644
--- a/src/systemcmds/tests/test_matrix.cpp
+++ b/src/systemcmds/tests/test_matrix.cpp
@@ -624,7 +624,9 @@ bool MatrixTest::vector2Tests()
 	ut_test(fabs(c(0) - 0) < 1e-5);
 	ut_test(fabs(c(1) - 0) < 1e-5);
 
-	Matrix<float, 2, 1> d(a);
+	static Matrix<float, 2, 1> d(a);
+	// the static keywork is a workaround for an internal bug of GCC
+	// "internal compiler error: in trunc_int_for_mode, at explow.c:55"
 	ut_test(fabs(d(0, 0) - 1) < 1e-5);
 	ut_test(fabs(d(1, 0) - 0) < 1e-5);