diff --git a/scripts/prettyasserts.py b/scripts/prettyasserts.py
index d1d193ad..3ea39100 100755
--- a/scripts/prettyasserts.py
+++ b/scripts/prettyasserts.py
@@ -35,7 +35,8 @@ LEXEMES = {
     'paren':        ['\(', '\)'],
     'cmp':          list(CMP.keys()),
     'logic':        ['\&\&', '\|\|'],
-    'sep':          [':', ';', '\{', '\}', ','],
+    'sep':          ['\?', ':', ','],
+    'term':         [';', '\{', '\}'],
     # specifically ops that conflict with cmp
     'op':           ['->', '>>', '<<'],
 }
@@ -346,7 +347,7 @@ def p_expr(p):
             res.append(p.m)
             while True:
                 res.append(p_exprs(p))
-                if p.accept('sep'):
+                if p.accept('sep', 'term'):
                     res.append(p.m)
                 else:
                     break
@@ -374,7 +375,7 @@ def p_exprs(p):
     res = []
     while True:
         res.append(p_expr(p))
-        if p.accept('cmp', 'logic', ','):
+        if p.accept('cmp', 'logic', 'sep'):
             res.append(p.m)
         else:
             return ''.join(res)
@@ -479,7 +480,7 @@ def main(input=None, output=None, *,
             try:
                 while True:
                     f.write(p_stmt(p))
-                    if p.accept('sep'):
+                    if p.accept('term'):
                         f.write(p.m)
                     else:
                         break
diff --git a/tests/test_forphans.toml b/tests/test_forphans.toml
index 6281777c..e1563c99 100644
--- a/tests/test_forphans.toml
+++ b/tests/test_forphans.toml
@@ -6085,7 +6085,7 @@ code = '''
             }
             lfsr_file_write(&lfs, &sim_files[j]->file, wbuf, SIZE) => SIZE;
             lfsr_file_sync(&lfs, &sim_files[j]->file)
-                    => ((!sim_files[j]->zombie) ? 0 : LFS_ERR_NOENT);
+                    => (!sim_files[j]->zombie) ? 0 : LFS_ERR_NOENT;
 
         // close a file?
         } else if (op == 2) {
@@ -6430,7 +6430,7 @@ code = '''
             }
             lfsr_file_write(&lfs, &sim_files[j]->file, wbuf, SIZE) => SIZE;
             lfsr_file_sync(&lfs, &sim_files[j]->file)
-                    => ((!sim_files[j]->zombie) ? 0 : LFS_ERR_NOENT);
+                    => (!sim_files[j]->zombie) ? 0 : LFS_ERR_NOENT;
 
         // close a file?
         } else if (op == 2) {
diff --git a/tests/test_wl.toml b/tests/test_wl.toml
index 4c942b41..0e9ac9c6 100644
--- a/tests/test_wl.toml
+++ b/tests/test_wl.toml
@@ -513,7 +513,7 @@ code = '''
             }
             lfsr_file_write(&lfs, &sim_files[j]->file, wbuf, SIZE) => SIZE;
             lfsr_file_sync(&lfs, &sim_files[j]->file)
-                    => ((!sim_files[j]->zombie) ? 0 : LFS_ERR_NOENT);
+                    => (!sim_files[j]->zombie) ? 0 : LFS_ERR_NOENT;
 
         // close a file?
         } else if (op == 2) {
@@ -859,7 +859,7 @@ code = '''
             }
             lfsr_file_write(&lfs, &sim_files[j]->file, wbuf, SIZE) => SIZE;
             lfsr_file_sync(&lfs, &sim_files[j]->file)
-                    => ((!sim_files[j]->zombie) ? 0 : LFS_ERR_NOENT);
+                    => (!sim_files[j]->zombie) ? 0 : LFS_ERR_NOENT;
 
         // close a file?
         } else if (op == 2) {