diff --git a/rtl/openbsd/si_c.pp b/rtl/openbsd/si_c.pp
index 6e957eb4f5..f883a2d867 100644
--- a/rtl/openbsd/si_c.pp
+++ b/rtl/openbsd/si_c.pp
@@ -22,6 +22,7 @@ interface
 
 implementation
 
+{$i si_impl.inc}
 {$i si_c.inc}
 
 end.
diff --git a/rtl/openbsd/si_dll.pp b/rtl/openbsd/si_dll.pp
index f8a5cde2c3..0ccf2921b6 100644
--- a/rtl/openbsd/si_dll.pp
+++ b/rtl/openbsd/si_dll.pp
@@ -22,6 +22,7 @@ interface
 
 implementation
 
+{$i si_impl.inc}
 {$i si_dll.inc}
 
 end.