diff --git a/dlls/vbscript/compile.c b/dlls/vbscript/compile.c
index 9b74bb77b33..8b759180858 100644
--- a/dlls/vbscript/compile.c
+++ b/dlls/vbscript/compile.c
@@ -388,6 +388,8 @@ static HRESULT compile_expression(compile_ctx_t *ctx, expression_t *expr)
         return compile_unary_expression(ctx, (unary_expression_t*)expr, OP_not);
     case EXPR_NULL:
         return push_instr(ctx, OP_null) != -1 ? S_OK : E_OUTOFMEMORY;
+    case EXPR_OR:
+        return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_or);
     case EXPR_STRING:
         return push_instr_str(ctx, OP_string, ((string_expression_t*)expr)->value);
     case EXPR_SUB:
diff --git a/dlls/vbscript/interp.c b/dlls/vbscript/interp.c
index d5e0370402e..e55d3285553 100644
--- a/dlls/vbscript/interp.c
+++ b/dlls/vbscript/interp.c
@@ -588,6 +588,12 @@ static HRESULT interp_and(exec_ctx_t *ctx)
     return stack_push(ctx, &v);
 }
 
+static HRESULT interp_or(exec_ctx_t *ctx)
+{
+    FIXME("\n");
+    return E_NOTIMPL;
+}
+
 static HRESULT cmp_oper(exec_ctx_t *ctx)
 {
     variant_val_t l, r;
diff --git a/dlls/vbscript/parse.h b/dlls/vbscript/parse.h
index d61a5f0370d..b4a91c892eb 100644
--- a/dlls/vbscript/parse.h
+++ b/dlls/vbscript/parse.h
@@ -34,6 +34,7 @@ typedef enum {
     EXPR_NEQUAL,
     EXPR_NOT,
     EXPR_NULL,
+    EXPR_OR,
     EXPR_STRING,
     EXPR_SUB,
     EXPR_ULONG,
diff --git a/dlls/vbscript/parser.y b/dlls/vbscript/parser.y
index 5c0468106ba..48843e74224 100644
--- a/dlls/vbscript/parser.y
+++ b/dlls/vbscript/parser.y
@@ -98,7 +98,7 @@ static arg_decl_t *new_argument_decl(parser_ctx_t*,const WCHAR*,BOOL);
 %type <statement> Statement StatementNl StatementsNl StatementsNl_opt IfStatement Else_opt
 %type <expression> Expression LiteralExpression PrimaryExpression EqualityExpression CallExpression
 %type <expression> ConcatExpression AdditiveExpression ModExpression IntdivExpression MultiplicativeExpression ExpExpression
-%type <expression> NotExpression UnaryExpression AndExpression
+%type <expression> NotExpression UnaryExpression AndExpression OrExpression
 %type <member> MemberExpression
 %type <expression> Arguments_opt ArgumentList_opt ArgumentList
 %type <bool> OptionExplicit_opt
@@ -188,7 +188,11 @@ EmptyBrackets_opt
     | tEMPTYBRACKETS
 
 Expression
+    : OrExpression                              { $$ = $1; }
+
+OrExpression
     : AndExpression                             { $$ = $1; }
+    | OrExpression tOR AndExpression            { $$ = new_binary_expression(ctx, EXPR_OR, $1, $3); CHECK_ERROR; }
 
 AndExpression
     : NotExpression                             { $$ = $1; }
diff --git a/dlls/vbscript/vbscript.h b/dlls/vbscript/vbscript.h
index 1d2f95d68d1..2a05998857c 100644
--- a/dlls/vbscript/vbscript.h
+++ b/dlls/vbscript/vbscript.h
@@ -139,6 +139,7 @@ typedef enum {
     X(nequal,         1, 0,           0)          \
     X(not,            1, 0,           0)          \
     X(null,           1, 0,           0)          \
+    X(or,             1, 0,           0)          \
     X(ret,            0, 0,           0)          \
     X(short,          1, ARG_INT,     0)          \
     X(string,         1, ARG_STR,     0)          \