diff --git a/rtl/beos/system.pp b/rtl/beos/system.pp
index e15426f40d..1faf6f685e 100644
--- a/rtl/beos/system.pp
+++ b/rtl/beos/system.pp
@@ -383,8 +383,7 @@ begin
   { Set up signals handlers (may be needed by init code to test cpu features) }
   InstallSignals;
 
-  SysInitStdIO;
-{ Setup heap }
+  { Setup heap }
   myheapsize:=4096*1;// $ 20000;
   myheaprealsize:=4096*1;// $ 20000;
   heapstart:=nil;
diff --git a/rtl/haiku/system.pp b/rtl/haiku/system.pp
index 059c49c84b..438e9821d2 100644
--- a/rtl/haiku/system.pp
+++ b/rtl/haiku/system.pp
@@ -416,8 +416,7 @@ begin
   { Set up signals handlers }
   InstallSignals;
 
-  SysInitStdIO;
-{ Setup heap }
+  { Setup heap }
   myheapsize:=4096*100;// $ 20000;
   myheaprealsize:=4096*100;// $ 20000;
   heapstart:=nil;