diff --git a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2Tests.java b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2Tests.java
index 7fde7bcfdf7..4a16a559eb9 100644
--- a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2Tests.java
+++ b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2Tests.java
@@ -3795,17 +3795,9 @@ public class AST2Tests extends AST2BaseTest {
 	// int32 f(int32 (*p)) {
 	//   return *p;
 	// }
-	public void test167833_cpp() throws Exception {
+	public void test167833() throws Exception {
 		StringBuffer buffer = getContents(1)[0];
 		parseAndCheckBindings(buffer.toString(), ParserLanguage.CPP);
-	}		
-
-	// typedef int int32;
-	// int32 f(int32 (*p)) {
-	//   return *p;
-	// }
-	public void _test167833_c() throws Exception {
-		StringBuffer buffer = getContents(1)[0];
 		parseAndCheckBindings(buffer.toString(), ParserLanguage.C);
 	}		
 }
diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/c/GNUCSourceParser.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/c/GNUCSourceParser.java
index 291b9001f81..a6248dfe114 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/c/GNUCSourceParser.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/c/GNUCSourceParser.java
@@ -2349,6 +2349,10 @@ public class GNUCSourceParser extends AbstractGNUSourceCodeParser {
             declSpec = fd.declSpec;
         }
 
+        // bug 167833, no declspec no parameter.
+        if (current == LA(1))
+            throwBacktrack(current.getOffset(), current.getLength());
+
         IASTDeclarator declarator = null;
         if (LT(1) != IToken.tSEMI)
             declarator = initDeclarator();