diff --git a/src/plugins/autotest/boost/boosttestsettings.cpp b/src/plugins/autotest/boost/boosttestsettings.cpp
index 4cf92251738..4ff10a90ce8 100644
--- a/src/plugins/autotest/boost/boosttestsettings.cpp
+++ b/src/plugins/autotest/boost/boosttestsettings.cpp
@@ -60,6 +60,7 @@ BoostTestSettings::BoostTestSettings(Id settingsId)
 
     seed.setSettingsKey("Seed");
     seed.setEnabled(false);
+    seed.setRange(0, INT_MAX); // UINT_MAX would be correct, but inner QSpinBox is limited to int
     seed.setLabelText(Tr::tr("Seed:"));
     seed.setToolTip(Tr::tr("A seed of 0 means no randomization. A value of 1 uses the current "
                            "time, any other value is used as random seed generator."));
diff --git a/src/plugins/autotest/gtest/gtestsettings.cpp b/src/plugins/autotest/gtest/gtestsettings.cpp
index 7fa1e534797..7aa370366f3 100644
--- a/src/plugins/autotest/gtest/gtestsettings.cpp
+++ b/src/plugins/autotest/gtest/gtestsettings.cpp
@@ -43,6 +43,7 @@ GTestSettings::GTestSettings(Id settingsId)
 
     seed.setSettingsKey("Seed");
     seed.setSpecialValueText({});
+    seed.setRange(0, 99999);
     seed.setEnabled(false);
     seed.setLabelText(Tr::tr("Seed:"));
     seed.setToolTip(Tr::tr("A seed of 0 generates a seed based on the current timestamp."));