diff --git a/src/common/wincmn.cpp b/src/common/wincmn.cpp
index aa5c6d3865..f6551938a2 100644
--- a/src/common/wincmn.cpp
+++ b/src/common/wincmn.cpp
@@ -1081,6 +1081,8 @@ bool wxWindowBase::SetFont(const wxFont& font)
     m_hasFont = font.Ok();
     m_inheritFont = m_hasFont;
 
+    InvalidateBestSize();
+
     return true;
 }