diff --git a/test/functional/modelchecker/EigenDtmcPrctlModelCheckerTest.cpp b/test/functional/modelchecker/EigenDtmcPrctlModelCheckerTest.cpp
index 8caa788bb..b66c71f09 100644
--- a/test/functional/modelchecker/EigenDtmcPrctlModelCheckerTest.cpp
+++ b/test/functional/modelchecker/EigenDtmcPrctlModelCheckerTest.cpp
@@ -60,6 +60,7 @@ TEST(EigenDtmcPrctlModelCheckerTest, Die) {
     EXPECT_NEAR(11.0 / 3.0, quantitativeResult4[0], storm::settings::getModule<storm::settings::modules::EigenEquationSolverSettings>().getPrecision());
 }
 
+#ifdef STORM_HAVE_CARL
 TEST(EigenDtmcPrctlModelCheckerTest, Die_RationalNumber) {
     storm::prism::Program program = storm::parser::PrismParser::parse(STORM_CPP_TESTS_BASE_PATH "/functional/builder/die.pm");
     
@@ -159,7 +160,7 @@ TEST(EigenDtmcPrctlModelCheckerTest, Die_RationalFunction) {
     
     EXPECT_EQ(storm::RationalNumber(11) / storm::RationalNumber(3), quantitativeResult4[0].evaluate(instantiation));
 }
-
+#endif
 
 TEST(EigenDtmcPrctlModelCheckerTest, Crowds) {
     std::shared_ptr<storm::models::sparse::Model<double>> abstractModel = storm::parser::AutoParser<>::parseModel(STORM_CPP_BASE_PATH "/examples/dtmc/crowds/crowds5_5.tra", STORM_CPP_BASE_PATH "/examples/dtmc/crowds/crowds5_5.lab", "", "");
diff --git a/test/functional/solver/EigenLinearEquationSolverTest.cpp b/test/functional/solver/EigenLinearEquationSolverTest.cpp
index 33d073c62..2cd90dc36 100644
--- a/test/functional/solver/EigenLinearEquationSolverTest.cpp
+++ b/test/functional/solver/EigenLinearEquationSolverTest.cpp
@@ -64,6 +64,7 @@ TEST(EigenLinearEquationSolver, SparseLU) {
     ASSERT_LT(std::abs(x[2] - (-1)), storm::settings::getModule<storm::settings::modules::EigenEquationSolverSettings>().getPrecision());
 }
 
+#ifdef STORM_HAVE_CARL
 TEST(EigenLinearEquationSolver, SparseLU_RationalNumber) {
     ASSERT_NO_THROW(storm::storage::SparseMatrixBuilder<storm::RationalNumber> builder);
     storm::storage::SparseMatrixBuilder<storm::RationalNumber> builder;
@@ -115,6 +116,7 @@ TEST(EigenLinearEquationSolver, SparseLU_RationalFunction) {
     ASSERT_TRUE(x[1] == storm::RationalFunction(3));
     ASSERT_TRUE(x[2] == storm::RationalFunction(-1));
 }
+#endif
 
 TEST(EigenLinearEquationSolver, DGMRES) {
     ASSERT_NO_THROW(storm::storage::SparseMatrixBuilder<double> builder);
@@ -412,4 +414,4 @@ TEST(EigenLinearEquationSolver, MatrixVectorMultiplication) {
     storm::solver::EigenLinearEquationSolver<double> solver(A);
     ASSERT_NO_THROW(solver.repeatedMultiply(x, nullptr, 4));
     ASSERT_LT(std::abs(x[0] - 1), storm::settings::getModule<storm::settings::modules::EigenEquationSolverSettings>().getPrecision());
-}
\ No newline at end of file
+}