diff --git a/tests/tbs/tb0105.pp b/tests/tbs/tb0105.pp
index 1cca59c9fc..a92cefa724 100644
--- a/tests/tbs/tb0105.pp
+++ b/tests/tbs/tb0105.pp
@@ -1,6 +1,6 @@
 { %TARGET=linux,go32v2 }
 { %CPU=i386 }
-{ %OPT= -Aas }
+{ %OPT= -Aas -Cg- }
 
 { Old file: tbs0124.pp }
 { Asm, problem with -Rintel switch and indexing         OK 0.99.11 (PM/PFV) }
diff --git a/tests/webtbs/tw11786.pp b/tests/webtbs/tw11786.pp
index 20095a885f..ce3a6f0db3 100644
--- a/tests/webtbs/tw11786.pp
+++ b/tests/webtbs/tw11786.pp
@@ -1,5 +1,6 @@
 { %skiptarget=darwin}
 { %cpu=i386 }
+{ %OPT=-Cg- }
 var
   w : word;
   b1,b2,b3 : byte;
diff --git a/tests/webtbs/tw18009.pp b/tests/webtbs/tw18009.pp
index ed26440a4e..f50467edc5 100644
--- a/tests/webtbs/tw18009.pp
+++ b/tests/webtbs/tw18009.pp
@@ -1,6 +1,7 @@
 { %CPU=i386 }
 { %TARGET=go32v2,win32,linux }
 { %NOTE=This test requires an installed Nasm }
+{ %OPT=-Cg- }
 
 {$ASMMODE INTEL}
 var