diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/AbstractIndexerTask.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/AbstractIndexerTask.java
index 9a7c04476de..8b6d6acfbe6 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/AbstractIndexerTask.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/AbstractIndexerTask.java
@@ -238,6 +238,7 @@ public abstract class AbstractIndexerTask extends PDOMWriter {
 				parseFilesUpFront(monitor);
 				parseLinkage(ILinkage.CPP_LINKAGE_ID, files, monitor);
 				parseLinkage(ILinkage.C_LINKAGE_ID, files, monitor);
+				parseLinkage(ILinkage.FORTRAN_LINKAGE_ID, files, monitor);
 			}
 			finally {
 				fIndex.flush();