diff --git a/rtl/go32v2/dos.pp b/rtl/go32v2/dos.pp
index 0b979a9c1f..bd373f61ca 100644
--- a/rtl/go32v2/dos.pp
+++ b/rtl/go32v2/dos.pp
@@ -12,6 +12,9 @@
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
  **********************************************************************}
+
+{$inline on}
+
 unit dos;
 
 interface
diff --git a/rtl/go32v2/sysutils.pp b/rtl/go32v2/sysutils.pp
index 14c884454e..98b9cea07f 100644
--- a/rtl/go32v2/sysutils.pp
+++ b/rtl/go32v2/sysutils.pp
@@ -13,6 +13,9 @@
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
  **********************************************************************}
+
+{$inline on}
+
 unit sysutils;
 interface
 
diff --git a/rtl/watcom/dos.pp b/rtl/watcom/dos.pp
index 1088441d10..5c8d040cbe 100644
--- a/rtl/watcom/dos.pp
+++ b/rtl/watcom/dos.pp
@@ -12,6 +12,9 @@
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
  **********************************************************************}
+
+{$inline on}
+
 unit dos;
 interface
 
diff --git a/rtl/watcom/sysutils.pp b/rtl/watcom/sysutils.pp
index cfb06b62c2..92dde48a97 100644
--- a/rtl/watcom/sysutils.pp
+++ b/rtl/watcom/sysutils.pp
@@ -13,6 +13,9 @@
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
  **********************************************************************}
+
+{$inline on}
+
 unit sysutils;
 interface