diff --git a/src/plugins/coreplugin/dialogs/settingsdialog.cpp b/src/plugins/coreplugin/dialogs/settingsdialog.cpp
index 88e7d36767135038c0b8ec3eff69df19fa64f6fc..d596348202b86d46bb646b629d87806ee16fcd5a 100644
--- a/src/plugins/coreplugin/dialogs/settingsdialog.cpp
+++ b/src/plugins/coreplugin/dialogs/settingsdialog.cpp
@@ -57,7 +57,7 @@
 
 static const char categoryKeyC[] = "General/LastPreferenceCategory";
 static const char pageKeyC[] = "General/LastPreferencePage";
-const int categoryIconSize = 32;
+const int categoryIconSize = 24;
 
 namespace Core {
 namespace Internal {