diff --git a/compiler/powerpc/cpuinfo.pas b/compiler/powerpc/cpuinfo.pas
index 5439263ef5..1d91423462 100644
--- a/compiler/powerpc/cpuinfo.pas
+++ b/compiler/powerpc/cpuinfo.pas
@@ -77,10 +77,10 @@ Const
                                  genericlevel3optimizerswitches-
                                  { no need to write info about those }
                                  [cs_opt_level1,cs_opt_level2,cs_opt_level3]+
-                                 [cs_opt_regvar,cs_opt_loopunroll,cs_opt_tailrecursion];
+                                 [cs_opt_regvar,cs_opt_loopunroll,cs_opt_nodecse,cs_opt_tailrecursion];
 
    level1optimizerswitches = genericlevel1optimizerswitches;
-   level2optimizerswitches = genericlevel2optimizerswitches + level1optimizerswitches + [cs_opt_regvar,cs_opt_tailrecursion];
+   level2optimizerswitches = genericlevel2optimizerswitches + level1optimizerswitches + [cs_opt_regvar,cs_opt_nodecse,cs_opt_tailrecursion];
    level3optimizerswitches = genericlevel3optimizerswitches + level2optimizerswitches + [{,cs_opt_loopunroll}];
 
 Implementation
diff --git a/compiler/powerpc64/cpuinfo.pas b/compiler/powerpc64/cpuinfo.pas
index ef1d226279..7b845cc45d 100644
--- a/compiler/powerpc64/cpuinfo.pas
+++ b/compiler/powerpc64/cpuinfo.pas
@@ -69,11 +69,11 @@ const
                                  genericlevel3optimizerswitches-
                                  { no need to write info about those }
                                  [cs_opt_level1,cs_opt_level2,cs_opt_level3]+
-                                 [cs_opt_regvar,cs_opt_loopunroll,cs_opt_nodecse];
+                                 [cs_opt_regvar,cs_opt_loopunroll,cs_opt_nodecse,cs_opt_tailrecursion];
 
    level1optimizerswitches = genericlevel1optimizerswitches;
    level2optimizerswitches = genericlevel2optimizerswitches + level1optimizerswitches + 
-     [cs_opt_regvar,cs_opt_stackframe,cs_opt_nodecse];
+     [cs_opt_regvar,cs_opt_stackframe,cs_opt_nodecse,cs_opt_tailrecursion];
    level3optimizerswitches = genericlevel3optimizerswitches + level2optimizerswitches + [{,cs_opt_loopunroll}];
 
 implementation