diff --git a/src/phrenderer.nim b/src/phrenderer.nim
index 896a4f8..9304443 100644
--- a/src/phrenderer.nim
+++ b/src/phrenderer.nim
@@ -1704,8 +1704,6 @@ proc gsub(g: var TOutput, n: PNode, flags: SubFlags, extra: int) =
 
     gsub(g, n[0], flags = flags) # binary operator
 
-    doAssert n.len == 3
-
     # `fitsNL` governs a preference to fit an argument fully on a new line over
     # leaving parts of it on the same line as the operator.
     # This increases the probability that the line will end with an operator and
diff --git a/tests/after/postexprs.nim b/tests/after/postexprs.nim
index 05be10a..0ab0b2c 100644
--- a/tests/after/postexprs.nim
+++ b/tests/after/postexprs.nim
@@ -95,3 +95,9 @@ else:
 discard (
   aaa.bbb.exec do(res: int64):
     size = res).ccc()
+
+macro `->`(a, b, c: untyped) =
+  discard
+
+1 -> 2 do:
+  discard
diff --git a/tests/after/postexprs.nim.nph.yaml b/tests/after/postexprs.nim.nph.yaml
index 005e7d1..4e155b9 100644
--- a/tests/after/postexprs.nim.nph.yaml
+++ b/tests/after/postexprs.nim.nph.yaml
@@ -576,3 +576,45 @@ sons:
                                 ident: "res"
               - kind: "nkIdent"
                 ident: "ccc"
+  - kind: "nkMacroDef"
+    sons:
+      - kind: "nkAccQuoted"
+        sons:
+          - kind: "nkIdent"
+            ident: "->"
+      - kind: "nkEmpty"
+      - kind: "nkEmpty"
+      - kind: "nkFormalParams"
+        sons:
+          - kind: "nkEmpty"
+          - kind: "nkIdentDefs"
+            sons:
+              - kind: "nkIdent"
+                ident: "a"
+              - kind: "nkIdent"
+                ident: "b"
+              - kind: "nkIdent"
+                ident: "c"
+              - kind: "nkIdent"
+                ident: "untyped"
+              - kind: "nkEmpty"
+      - kind: "nkEmpty"
+      - kind: "nkEmpty"
+      - kind: "nkStmtList"
+        sons:
+          - kind: "nkDiscardStmt"
+            sons:
+              - kind: "nkEmpty"
+  - kind: "nkInfix"
+    sons:
+      - kind: "nkIdent"
+        ident: "->"
+      - kind: "nkIntLit"
+        intVal: 1
+      - kind: "nkIntLit"
+        intVal: 2
+      - kind: "nkStmtList"
+        sons:
+          - kind: "nkDiscardStmt"
+            sons:
+              - kind: "nkEmpty"
diff --git a/tests/before/postexprs.nim b/tests/before/postexprs.nim
index 9bd72df..f02ee50 100644
--- a/tests/before/postexprs.nim
+++ b/tests/before/postexprs.nim
@@ -97,3 +97,8 @@ else: discard
 
 discard (aaa.bbb.exec do(res: int64):
       size = res).ccc()
+
+macro `->`(a, b, c: untyped) = discard
+
+1 -> 2:
+  discard
diff --git a/tests/before/postexprs.nim.nph.yaml b/tests/before/postexprs.nim.nph.yaml
index 005e7d1..4e155b9 100644
--- a/tests/before/postexprs.nim.nph.yaml
+++ b/tests/before/postexprs.nim.nph.yaml
@@ -576,3 +576,45 @@ sons:
                                 ident: "res"
               - kind: "nkIdent"
                 ident: "ccc"
+  - kind: "nkMacroDef"
+    sons:
+      - kind: "nkAccQuoted"
+        sons:
+          - kind: "nkIdent"
+            ident: "->"
+      - kind: "nkEmpty"
+      - kind: "nkEmpty"
+      - kind: "nkFormalParams"
+        sons:
+          - kind: "nkEmpty"
+          - kind: "nkIdentDefs"
+            sons:
+              - kind: "nkIdent"
+                ident: "a"
+              - kind: "nkIdent"
+                ident: "b"
+              - kind: "nkIdent"
+                ident: "c"
+              - kind: "nkIdent"
+                ident: "untyped"
+              - kind: "nkEmpty"
+      - kind: "nkEmpty"
+      - kind: "nkEmpty"
+      - kind: "nkStmtList"
+        sons:
+          - kind: "nkDiscardStmt"
+            sons:
+              - kind: "nkEmpty"
+  - kind: "nkInfix"
+    sons:
+      - kind: "nkIdent"
+        ident: "->"
+      - kind: "nkIntLit"
+        intVal: 1
+      - kind: "nkIntLit"
+        intVal: 2
+      - kind: "nkStmtList"
+        sons:
+          - kind: "nkDiscardStmt"
+            sons:
+              - kind: "nkEmpty"