diff --git a/sc/source/filter/excel/excimp8.cxx b/sc/source/filter/excel/excimp8.cxx
index 8209a86bb8d4..fd8e221986f0 100644
--- a/sc/source/filter/excel/excimp8.cxx
+++ b/sc/source/filter/excel/excimp8.cxx
@@ -371,7 +371,7 @@ void ImportExcel8::Feat( void )
     aProt.mnAreserved = aIn.ReaduInt32();
     aProt.mnPasswordVerifier = aIn.ReaduInt32();
     aProt.maTitle = aIn.ReadUniString();
-    if ((aProt.mnAreserved & 0x80000000) == 0x80000000)
+    if ((aProt.mnAreserved & 0x00000001) == 0x00000001)
     {
         sal_uInt32 nCbSD = aIn.ReaduInt32();
         // TODO: could here be some sanity check applied to not allocate 4GB?
diff --git a/sc/source/filter/xcl97/xcl97rec.cxx b/sc/source/filter/xcl97/xcl97rec.cxx
index d6c39cead5f0..285fc62b83a0 100644
--- a/sc/source/filter/xcl97/xcl97rec.cxx
+++ b/sc/source/filter/xcl97/xcl97rec.cxx
@@ -1492,7 +1492,7 @@ void XclExpSheetEnhancedProtection::WriteBody( XclExpStream& rStrm )
     rStrm << maEnhancedProtection.mnAreserved;              // 1 bit A and 31 bits reserved
     rStrm << maEnhancedProtection.mnPasswordVerifier;       // wPassword
     rStrm << XclExpString( maEnhancedProtection.maTitle);   // stTitle
-    bool bSDContainer = ((maEnhancedProtection.mnAreserved & 0x80000000) == 0x80000000);
+    bool bSDContainer = ((maEnhancedProtection.mnAreserved & 0x00000001) == 0x00000001);
     sal_uInt32 nCbSD = maEnhancedProtection.maSecurityDescriptor.size();
     SAL_WARN_IF( bSDContainer && nCbSD < 20, "sc.filter",
             "XclExpSheetEnhancedProtection A flag indicates container but cbSD < 20");