diff --git a/.github/workflows/neuron-ci.yml b/.github/workflows/neuron-ci.yml
index 2b0e8fb4fd..ce0b535b11 100644
--- a/.github/workflows/neuron-ci.yml
+++ b/.github/workflows/neuron-ci.yml
@@ -240,8 +240,7 @@ jobs:
                                 -Wno-unused-function \
                                 -Wno-unused-but-set-variable \
                                 -Wno-reorder \
-                                -Wno-sign-compare \
-                                -Wno-strict-aliasing" \
+                                -Wno-sign-compare" \
                              -DNRN_EXTRA_MECH_CXX_FLAGS="-Wno-sometimes-uninitialized \
                                 -Wno-missing-braces")
               fi
diff --git a/src/ivoc/ocjump.cpp b/src/ivoc/ocjump.cpp
index 3d7518dc6d..835a91a21a 100644
--- a/src/ivoc/ocjump.cpp
+++ b/src/ivoc/ocjump.cpp
@@ -92,7 +92,6 @@ class OcJumpImpl {
     // hoc_oop
     Object* o1;
     Objectdata* o2;
-    int* o3;
     int o4;
     Symlist* o5;
 
diff --git a/src/ivoc/ocjump.h b/src/ivoc/ocjump.h
index b9bf691051..332b9d75a4 100644
--- a/src/ivoc/ocjump.h
+++ b/src/ivoc/ocjump.h
@@ -1,6 +1,4 @@
-#ifndef ocjump_h
-#define ocjump_h
-
+#pragma once
 union Inst;
 class OcJumpImpl;
 struct Symlist;
@@ -16,7 +14,6 @@ class ObjectContext {
   private:
     Object* a1;
     Objectdata* a2;
-    int* a3;
     int a4;
     Symlist* a5;
     bool restored_;
@@ -35,5 +32,3 @@ class OcJump {
   private:
     OcJumpImpl* impl_;
 };
-
-#endif