diff --git a/asan_ignore b/asan_ignore
index f520546210..8050f3c217 100644
--- a/asan_ignore
+++ b/asan_ignore
@@ -16,8 +16,11 @@
 # suffix with =foo for a "tool-specific category", but neither =undefined
 # nor =signed-integer-overflow worked.
 
-fun:Perl_pp_i_*
-
+fun:Perl_pp_i_add
+fun:Perl_pp_i_divide
+fun:Perl_pp_i_negate
+fun:Perl_pp_i_multiply
+fun:Perl_pp_i_subtract
 
 # this function numifies the field width in eg printf "%10f".
 # It has its own overflow detection, so don't warn about it