diff --git a/src/plugins/cmakeprojectmanager/cmakebuildstep.cpp b/src/plugins/cmakeprojectmanager/cmakebuildstep.cpp
index d20e557d5e2..d512c5138bc 100644
--- a/src/plugins/cmakeprojectmanager/cmakebuildstep.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakebuildstep.cpp
@@ -481,7 +481,7 @@ CMakeBuildStepConfigWidget::CMakeBuildStepConfigWidget(CMakeBuildStep *buildStep
     });
     connect(m_buildStep->project(), &Project::activeProjectConfigurationChanged,
             this, [this](ProjectConfiguration *pc) {
-        if (pc->isActive())
+        if (pc && pc->isActive())
             updateDetails();
     });
 }