--- lazarus/ide/include/unix/lazbaseconf.inc
+++ lazarus/ide/include/unix/lazbaseconf.inc
@@ -24,7 +24,8 @@
 }
 
 const
-  DefaultFPCSrcDirs: array[1..14] of string = (
+  DefaultFPCSrcDirs: array[1..15] of string = (
+    '/usr/lib/fpc/@FPCVER@/source',
     '/usr/share/fpcsrc',
     '/usr/local/share/fpcsrc',
     '/usr/fpcsrc',