diff --git a/docs/Debugger_Changelog.txt b/docs/Debugger_Changelog.txt
index 0548d131..95bbfe24 100644
--- a/docs/Debugger_Changelog.txt
+++ b/docs/Debugger_Changelog.txt
@@ -1,4 +1,5 @@
 /*
+.11 Added:"Warning" for long symbols when symbol table is loaded
 .10 Changed: "Warning" of symbols that alias to "Info."
 .9 Continuation of 2.8.0.8: Fix overflowing disassembly pane for long symbols
 .8 Fixed: Inactive Language Card bank now grayed out, main memory no longer double inverse.
diff --git a/source/Debugger/Debugger_Symbols.cpp b/source/Debugger/Debugger_Symbols.cpp
index 91c6766e..eb04e540 100644
--- a/source/Debugger/Debugger_Symbols.cpp
+++ b/source/Debugger/Debugger_Symbols.cpp
@@ -555,6 +555,8 @@ int ParseSymbolTable( TCHAR *pPathFileName, SymbolTable_Index_e eSymbolTableWrit
 	char sText[ CONSOLE_WIDTH * 3 ];
 	bool bFileDisplayed = false;
 
+	const int nMaxLen = min(MAX_TARGET_LEN,MAX_SYMBOLS_LEN);
+
 	int nSymbolsLoaded = 0;
 
 	if (! pPathFileName)
@@ -637,6 +639,20 @@ int ParseSymbolTable( TCHAR *pPathFileName, SymbolTable_Index_e eSymbolTableWrit
 			WORD nAddressPrev;
 			int  iTable;
 
+			// 2.9.0.11 Bug #479
+			int nLen = strlen( sName );
+			if (nLen >= nMaxLen)
+			{
+				ConsolePrintFormat( sText, " %sWarn.: %s%s (%d > %d)"
+					, CHC_WARNING
+					, CHC_SYMBOL
+					, sName
+					, nLen
+					, nMaxLen
+				);
+				ConsoleUpdate(); // Flush buffered output so we don't ask the user to pause
+			}
+
 			// 2.8.0.5 Bug #244 (Debugger) Duplicate symbols for identical memory addresses in APPLE2E.SYM
 			const char *pSymbolPrev = FindSymbolFromAddress( (WORD)nAddress, &iTable ); // don't care which table it is in
 			if( pSymbolPrev )