diff --git a/src/tests/CMakeLists.txt b/src/tests/CMakeLists.txt
index 3d2deb755..bfb2ba577 100644
--- a/src/tests/CMakeLists.txt
+++ b/src/tests/CMakeLists.txt
@@ -30,6 +30,10 @@ if(NOT GOOGLETEST_FOUND)
         "--build" "${CMAKE_BINARY_DIR}/gtest-${GNSSSDR_GTEST_LOCAL_VERSION}"
         "--config" $<$<CONFIG:Debug>:Debug>$<$<CONFIG:Release>:Release>$<$<CONFIG:RelWithDebInfo>:RelWithDebInfo>$<$<CONFIG:MinSizeRel>:MinSizeRel>$<$<CONFIG:NoOptWithASM>:Debug>$<$<CONFIG:Coverage>:Debug>$<$<CONFIG:O2WithASM>:RelWithDebInfo>$<$<CONFIG:O3WithASM>:RelWithDebInfo>$<$<CONFIG:ASAN>:Debug>
     )
+    if(CMAKE_VERSION VERSION_GREATER 3.12)
+        # Parallel building of gtest causes problems in some environments (e.g. Macports buildings)
+        set(GTEST_BUILD_COMMAND ${GTEST_BUILD_COMMAND} "--parallel 1")
+    endif()
     if(CMAKE_GENERATOR STREQUAL Xcode)
         set(GTEST_BUILD_COMMAND "xcodebuild" "-configuration" $<$<CONFIG:Debug>:Debug>$<$<CONFIG:Release>:Release>$<$<CONFIG:RelWithDebInfo>:RelWithDebInfo>$<$<CONFIG:MinSizeRel>:MinSizeRel> "-target" "gtest_main")
     endif()