diff -rupN --no-dereference qt-creator-opensource-src-4.14.0/src/plugins/cmakeprojectmanager/cmakekitinformation.cpp qt-creator-opensource-src-4.14.0-new/src/plugins/cmakeprojectmanager/cmakekitinformation.cpp

--- qt-creator-opensource-src-4.14.0/src/plugins/cmakeprojectmanager/cmakekitinformation.cpp	2020-12-17 09:52:29.000000000 +0100

+++ qt-creator-opensource-src-4.14.0-new/src/plugins/cmakeprojectmanager/cmakekitinformation.cpp	2020-12-28 14:05:56.969705338 +0100

@@ -639,7 +639,7 @@ QVariant CMakeGeneratorKitAspect::defaul

             if (settings->ninjaPath().isEmpty()) {

                 Utils::Environment env = Utils::Environment::systemEnvironment();

                 k->addToEnvironment(env);

-                return !env.searchInPath("ninja").isEmpty();

+                return !env.searchInPath("ninja-build").isEmpty();

             }

             return true;

         }();