diff --git a/sc/source/ui/condformat/condformatdlgdata.cxx b/sc/source/ui/condformat/condformatdlgdata.cxx
index 89cd51b41abb..024bd8d9bd9a 100644
--- a/sc/source/ui/condformat/condformatdlgdata.cxx
+++ b/sc/source/ui/condformat/condformatdlgdata.cxx
@@ -14,7 +14,7 @@
 #include <condformatdlgdata.hxx>
 
 ScCondFormatDlgData::ScCondFormatDlgData(std::shared_ptr<ScConditionalFormatList> pCondFormats,
-        sal_Int32 nItem, bool bManaged):
+        sal_uInt32 nItem, bool bManaged):
     mpCondFormats(std::move(pCondFormats)),
     mnItem(nItem),
     meDialogType(condformat::dialog::CONDITION),
@@ -32,7 +32,7 @@ condformat::dialog::ScCondFormatDialogType ScCondFormatDlgData::GetDialogType()
     return meDialogType;
 }
 
-sal_Int32 ScCondFormatDlgData::GetIndex() const
+sal_uInt32 ScCondFormatDlgData::GetIndex() const
 {
     return mnItem;
 }
diff --git a/sc/source/ui/inc/condformatdlg.hxx b/sc/source/ui/inc/condformatdlg.hxx
index 1946196b5028..19b2322bdcaa 100644
--- a/sc/source/ui/inc/condformatdlg.hxx
+++ b/sc/source/ui/inc/condformatdlg.hxx
@@ -78,7 +78,7 @@ public:
 class ScCondFormatDlg : public ScAnyRefDlgController
 {
 private:
-    sal_Int32 mnKey;
+    sal_uInt32 mnKey;
 
     ScAddress maPos;
     ScViewData* mpViewData;
diff --git a/sc/source/ui/inc/condformatdlgdata.hxx b/sc/source/ui/inc/condformatdlgdata.hxx
index bbee525b3bdd..31d42265601c 100644
--- a/sc/source/ui/inc/condformatdlgdata.hxx
+++ b/sc/source/ui/inc/condformatdlgdata.hxx
@@ -30,7 +30,7 @@ class ScConditionalFormatList;
 class ScCondFormatDlgData
 {
 public:
-    ScCondFormatDlgData(std::shared_ptr<ScConditionalFormatList> pCondFormats, sal_Int32 nItem,
+    ScCondFormatDlgData(std::shared_ptr<ScConditionalFormatList> pCondFormats, sal_uInt32 nItem,
                         bool bManaged);
 
     ScCondFormatDlgData(ScCondFormatDlgData const&) = default;
@@ -38,7 +38,7 @@ public:
 
     bool IsManaged() const;
     condformat::dialog::ScCondFormatDialogType GetDialogType() const;
-    sal_Int32 GetIndex() const;
+    sal_uInt32 GetIndex() const;
 
     void SetDialogType(condformat::dialog::ScCondFormatDialogType eType);
 
@@ -46,7 +46,7 @@ public:
 
 private:
     std::shared_ptr<ScConditionalFormatList> mpCondFormats;
-    sal_Int32 mnItem;
+    sal_uInt32 mnItem;
     condformat::dialog::ScCondFormatDialogType meDialogType;
     bool mbManaged;
 };
diff --git a/sc/source/ui/view/cellsh1.cxx b/sc/source/ui/view/cellsh1.cxx
index 4b94a67eed1a..99f5075f6b3a 100644
--- a/sc/source/ui/view/cellsh1.cxx
+++ b/sc/source/ui/view/cellsh1.cxx
@@ -2958,7 +2958,7 @@ void ScCellShell::ExecuteEdit( SfxRequest& rReq )
                         else if (nRet == DLG_RET_EDIT)
                         {
                             ScConditionalFormat* pFormat = pDlg->GetCondFormatSelected();
-                            sal_Int32 nIndex = pFormat ? pFormat->GetKey() : -1;
+                            sal_uInt32 nIndex = pFormat ? pFormat->GetKey() : sal_uInt32(-1);
                             // Put the xml string parameter to initialize the
                             // Conditional Format Dialog. ( edit selected conditional format )
                             pTabViewShell->setScCondFormatDlgItem(