diff --git a/sourcepawn/compiler/sc.h b/sourcepawn/compiler/sc.h
index 0c5c8471..3b81465c 100644
--- a/sourcepawn/compiler/sc.h
+++ b/sourcepawn/compiler/sc.h
@@ -672,8 +672,9 @@ SC_FUNC symbol *addvariable3(declinfo_t *decl,cell addr,int vclass,int slength);
 SC_FUNC int getlabel(void);
 SC_FUNC char *itoh(ucell val);
 
-#define MATCHTAG_COERCE  0x1 // allow coercion
-#define MATCHTAG_SILENT  0x2 // silence the error(213) warning
+#define MATCHTAG_COERCE       0x1 // allow coercion
+#define MATCHTAG_SILENT       0x2 // silence the error(213) warning
+#define MATCHTAG_COMMUTATIVE  0x4 // order does not matter
 
 /* function prototypes in SC3.C */
 SC_FUNC int check_userop(void (*oper)(void),int tag1,int tag2,int numparam,
diff --git a/sourcepawn/compiler/sc1.c b/sourcepawn/compiler/sc1.c
index 818ca6c4..b0c99bef 100644
--- a/sourcepawn/compiler/sc1.c
+++ b/sourcepawn/compiler/sc1.c
@@ -4056,7 +4056,7 @@ static void domethodmap(LayoutSpec spec)
   if (spec == Layout_MethodMap) {
     map->tag = pc_addtag_flags(mapname, FIXEDTAG | METHODMAPTAG);
 
-    if (matchtoken(tNULLABLE))
+    if (matchtoken(tNULLABLE) || (parent && parent->nullable))
       map->nullable = TRUE;
   } else {
     constvalue *tagptr = pc_tagptr(mapname);
diff --git a/sourcepawn/compiler/sc3.c b/sourcepawn/compiler/sc3.c
index bf2d630c..4e6e31f9 100644
--- a/sourcepawn/compiler/sc3.c
+++ b/sourcepawn/compiler/sc3.c
@@ -353,6 +353,15 @@ static int obj_typeerror(int id, int tag1, int tag2)
 
 static int matchobjecttags(int formaltag, int actualtag, int flags)
 {
+  if ((flags & MATCHTAG_COMMUTATIVE) &&
+      (formaltag == pc_tag_null_t || formaltag == pc_tag_nullfunc_t))
+  {
+    // Bypass the check immediately after for non-object coercion.
+    int tmp = actualtag;
+    actualtag = formaltag;
+    formaltag = tmp;
+  }
+
   // objects never coerce to non-objects, YET.
   if ((formaltag & OBJECTTAG) && !(actualtag & OBJECTTAG))
     return obj_typeerror(132, formaltag, actualtag);
@@ -372,12 +381,11 @@ static int matchobjecttags(int formaltag, int actualtag, int flags)
     if (formaltag & OBJECTTAG)
       return TRUE;
 
-    // Some methodmaps are nullable.
+    // Some methodmaps are nullable. The nullable property is inherited
+    // automatically.
     methodmap_t *map = methodmap_find_by_tag(formaltag);
-    for (; map; map = map->parent) {
-      if (map->nullable)
-        return TRUE;
-    }
+    if (map->nullable)
+      return TRUE;
 
     error(148, pc_tagname(formaltag));
     return FALSE;
@@ -923,8 +931,9 @@ static void plnge2(void (*oper)(void),
       matchtag(lval1->tag,lval2->tag,FALSE);
       lval1->constval=calc(lval1->constval,oper,lval2->constval,&lval1->boolresult);
     } else {
+      // For the purposes of tag matching, we consider the order to be irrelevant.
       if (!checktag_string(lval1, lval2))
-        matchtag(lval1->tag,lval2->tag,FALSE);
+        matchtag(lval1->tag, lval2->tag, MATCHTAG_COMMUTATIVE);
       (*oper)();                /* do the (signed) operation */
       lval1->ident=iEXPRESSION;
     } /* if */
diff --git a/sourcepawn/compiler/tests/ok-null-compare.sp b/sourcepawn/compiler/tests/ok-null-compare.sp
new file mode 100644
index 00000000..044c0bfd
--- /dev/null
+++ b/sourcepawn/compiler/tests/ok-null-compare.sp
@@ -0,0 +1,19 @@
+enum Handle:
+{
+}
+
+methodmap Handle __nullable__
+{
+}
+
+methodmap StringMap < Handle
+{
+}
+
+native Log(const char[] fmt, any:...)
+
+public main()
+{
+	StringMap f
+	Log("hello %d", f != null)
+}