diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPASTLiteralExpression.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPASTLiteralExpression.java
index c095b5a095f..b77475fdc09 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPASTLiteralExpression.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPASTLiteralExpression.java
@@ -121,7 +121,13 @@ public class CPPASTLiteralExpression extends ASTNode implements ICPPASTLiteralEx
 		return fSuffix;
 	}
 
-	public void setSuffix(char[] suffix) {
+    public void addSuffix(char[] suffix) {
+    	setSuffix(suffix);
+    	// Make sure fValue reflects the added suffix.
+    	fValue = CharArrayUtils.concat(fValue, suffix);
+    }
+    
+	private void setSuffix(char[] suffix) {
 		this.fSuffix = suffix;
 	}
 
diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/GNUCPPSourceParser.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/GNUCPPSourceParser.java
index 30dea4837df..46ea9c12431 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/GNUCPPSourceParser.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/GNUCPPSourceParser.java
@@ -2005,7 +2005,7 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
 					return literalExprWithRange;
 				}
 				IToken opName = consume(IToken.tIDENTIFIER);
-				((CPPASTLiteralExpression) literalExprWithRange).setSuffix(opName.getCharImage());
+				((CPPASTLiteralExpression) literalExprWithRange).addSuffix(opName.getCharImage());
 				setRange(literalExprWithRange, offset, opName.getEndOffset());
 			}
 		}