diff --git a/.travis.yml b/.travis.yml
index cfa68c523..c5208b31f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -224,10 +224,13 @@ script:
   # append CXX_STANDARD to CMAKE_OPTIONS if required
   - CMAKE_OPTIONS+=${CXX_STANDARD:+ -DCMAKE_CXX_STANDARD=$CXX_STANDARD -DCMAKE_CXX_STANDARD_REQUIRED=ON}
 
+  # build configuration
+  - CMAKE_OPTIONS+=" -DCMAKE_BUILD_TYPE=Release"
+
   # compile and execute unit tests
   - mkdir -p build && cd build
-  - cmake .. ${CMAKE_OPTIONS} -DJSON_BuildTests=On -GNinja && cmake --build . --config Release
-  - ctest -C Release --timeout 2700 -V -j
+  - cmake .. ${CMAKE_OPTIONS} -DJSON_BuildTests=On -GNinja && cmake --build .
+  - ctest --timeout 2700 -V -j
   - cd ..
 
   # check if homebrew works (only checks develop branch)   
diff --git a/cmake/ci.cmake b/cmake/ci.cmake
index 5085c369d..4e0d74b12 100644
--- a/cmake/ci.cmake
+++ b/cmake/ci.cmake
@@ -441,7 +441,7 @@ add_custom_target(ci_test_noexceptions
 add_custom_target(ci_test_noimplicitconversions
     COMMAND CXX=${CLANG_TOOL} ${CMAKE_COMMAND}
     -DCMAKE_BUILD_TYPE=Debug -GNinja
-    -DJSON_BuildTests=ON -DJSON_MultipleHeaders=ON -DJSON_ImplicitConversions=ON
+    -DJSON_BuildTests=ON -DJSON_MultipleHeaders=ON -DJSON_ImplicitConversions=OFF
     -S${PROJECT_SOURCE_DIR} -B${PROJECT_BINARY_DIR}/build_noimplicitconversions
     COMMAND ${CMAKE_COMMAND} --build ${PROJECT_BINARY_DIR}/build_noimplicitconversions
     COMMAND cd ${PROJECT_BINARY_DIR}/build_noimplicitconversions && ${CMAKE_CTEST_COMMAND} --parallel ${N} --output-on-failure