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-rw-r--r--src/gui/base/widgets/radiobutton.hpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/gui/base/widgets/radiobutton.hpp b/src/gui/base/widgets/radiobutton.hpp
index 4d4403fac..f4bfd53fa 100644
--- a/src/gui/base/widgets/radiobutton.hpp
+++ b/src/gui/base/widgets/radiobutton.hpp
@@ -93,7 +93,7 @@ namespace gcn
/**
* Constructor.
*/
- RadioButton(const Widget2 *const widget);
+ explicit RadioButton(const Widget2 *const widget);
/**
* Constructor. The radio button will be automatically resized