diff --git a/src/gui/components/cc_frm_header.cpp b/src/gui/components/cc_frm_header.cpp
index 248977542..1774db6a1 100644
--- a/src/gui/components/cc_frm_header.cpp
+++ b/src/gui/components/cc_frm_header.cpp
@@ -252,7 +252,7 @@ void CComponentsHeader::addContextButton(const int& buttons)
 
 void CComponentsHeader::removeContextButtons()
 {
-	dprintf(DEBUG_DEBUG, "[CComponentsHeader]\t    [%s - %d] removing %u context buttons...\n", __func__, __LINE__, v_cch_btn.size());
+	dprintf(DEBUG_DEBUG, "[CComponentsHeader]\t    [%s - %d] removing %zu context buttons...\n", __func__, __LINE__, v_cch_btn.size());
 	v_cch_btn.clear();
 	if (cch_btn_obj)
 		cch_btn_obj->clear();;