diff --git a/build/org.eclipse.cdt.make.core/src/org/eclipse/cdt/make/internal/core/scannerconfig/DiscoveredPathInfo.java b/build/org.eclipse.cdt.make.core/src/org/eclipse/cdt/make/internal/core/scannerconfig/DiscoveredPathInfo.java
index e546f70e1ea..59d6b9ec42f 100644
--- a/build/org.eclipse.cdt.make.core/src/org/eclipse/cdt/make/internal/core/scannerconfig/DiscoveredPathInfo.java
+++ b/build/org.eclipse.cdt.make.core/src/org/eclipse/cdt/make/internal/core/scannerconfig/DiscoveredPathInfo.java
@@ -145,7 +145,7 @@ public class DiscoveredPathInfo implements IPerProjectDiscoveredPathInfo, IDisco
 		}
 		// Now do the same for the symbols
 		Map<String, SymbolEntry> symbols = getSymbolMap();
-		Set<String> symbolsSet = includes.keySet();
+		Set<String> symbolsSet = symbols.keySet();
 		for (String symbol : symbolsSet) {
 			SymbolEntry se = symbols.get(symbol);
 			List<String> activeValues = se.getActiveRaw();