diff --git a/tools/conventions/analyze_gfortran_warnings.py b/tools/conventions/analyze_gfortran_warnings.py
index eae09ec6e2..ab1211daac 100755
--- a/tools/conventions/analyze_gfortran_warnings.py
+++ b/tools/conventions/analyze_gfortran_warnings.py
@@ -31,6 +31,7 @@
 )
 
 warning_re = re.compile(r".*[Ww]arning: (.*)")
+warning_re_subst = re.compile(r"'\d+'")  # replace occurences of '49' with *
 
 IGNORED_WARNINGS = (
     "-Wrealloc-lhs",
@@ -81,6 +82,8 @@ def check_warnings(fhandle):
             continue  # we are only looking for warnings
         warning = m.group(1)
 
+        warning = warning_re_subst.sub("*", warning)
+
         if any(iw in warning for iw in IGNORED_WARNINGS):
             continue
 
diff --git a/tools/conventions/conventions.supp b/tools/conventions/conventions.supp
index b1aefb0334..0f32302fce 100644
--- a/tools/conventions/conventions.supp
+++ b/tools/conventions/conventions.supp
@@ -104,6 +104,7 @@ cp_lbfgs.F: Found WRITE statement with hardcoded unit in "subsm"
 cp_log_handling.F: Found WRITE statement with hardcoded unit in "cp_int_to_string"
 cp_log_handling.F: Found WRITE statement with hardcoded unit in "cp_logger_get_default_unit_nr"
 cp_parser_inpp_methods.F: Found READ with unchecked STAT in "inpp_process_directive"
+cp2k.F: Integer division truncated to constant * at (1) [-Winteger-division]
 cube_utils.F: Found WRITE statement with hardcoded unit in "return_cube_nonortho"
 d3_poly.F: Found CALL RANDOM_NUMBER in procedure "poly_random"
 dkh_main.F: Found WRITE statement with hardcoded unit in "kintegral"