diff --git a/0001-Fix-compiler-errors.patch b/0001-Fix-compiler-errors.patch
new file mode 100644
index 0000000000000000000000000000000000000000..9c7b03b4bdd24e57445602d72f50822c84b4e3f9
--- /dev/null
+++ b/0001-Fix-compiler-errors.patch
@@ -0,0 +1,66 @@
+From 21cd87cee68108712aaba82e2b0c47ebdd6a70be Mon Sep 17 00:00:00 2001
+From: lizhenhua <lizhenhua@sina.com>
+Date: Wed, 10 Jun 2020 17:34:25 +0800
+Subject: [PATCH] Fix compiler errors
+
+---
+ lib/equation-parser.vala | 6 +++---
+ lib/math-equation.vala   | 4 ++--
+ 2 files changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/lib/equation-parser.vala b/lib/equation-parser.vala
+index 668e1cd..f919d37 100644
+--- a/lib/equation-parser.vala
++++ b/lib/equation-parser.vala
+@@ -76,7 +76,7 @@ public class ParseNode : Object
+     public ParseNode.WithList (Parser parser, List<LexerToken> token_list, uint precedence, Associativity associativity, string? value = null)
+     {
+         this.parser = parser;
+-        this.token_list = token_list.copy();
++        this.token_list = token_list.copy_deep((CopyFunc) Object.ref);
+         this.precedence = precedence;
+         this.associativity = associativity;
+         this.value = value;
+@@ -101,7 +101,7 @@ public class ParseNode : Object
+ 
+ public abstract class RNode : ParseNode
+ {
+-    public RNode (Parser parser, LexerToken? token, uint precedence, Associativity associativity)
++    protected RNode (Parser parser, LexerToken? token, uint precedence, Associativity associativity)
+     {
+         base (parser, token, precedence, associativity);
+     }
+@@ -132,7 +132,7 @@ public abstract class RNode : ParseNode
+ 
+ public abstract class LRNode : ParseNode
+ {
+-    public LRNode (Parser parser, LexerToken? token, uint precedence, Associativity associativity)
++    protected LRNode (Parser parser, LexerToken? token, uint precedence, Associativity associativity)
+     {
+         base (parser, token, precedence, associativity);
+     }
+diff --git a/lib/math-equation.vala b/lib/math-equation.vala
+index bb9c771..65b10ab 100644
+--- a/lib/math-equation.vala
++++ b/lib/math-equation.vala
+@@ -824,7 +824,7 @@ public class MathEquation : Gtk.SourceBuffer
+         {
+             Gtk.TextIter iter;
+             get_iter_at_mark (out iter, get_insert ());
+-            (this as Gtk.TextBuffer).backspace (iter, true, true);
++            (this as Gtk.TextBuffer).backspace (ref iter, true, true);
+             insert_at_cursor ("^", -1);
+             return;
+         }
+@@ -1245,7 +1245,7 @@ public class MathEquation : Gtk.SourceBuffer
+         {
+             Gtk.TextIter iter;
+             get_iter_at_mark (out iter, get_insert ());
+-            (this as Gtk.TextBuffer).backspace (iter, true, true);
++            (this as Gtk.TextBuffer).backspace (ref iter, true, true);
+         }
+     }
+ 
+-- 
+2.23.0
+
diff --git a/gnome-calculator.spec b/gnome-calculator.spec
index 74eb7e9d5b5fdac2e6e92f826d7a2cc536e7aaa7..6200e0223cbe4e625ece69d812897b405bb0c939 100644
--- a/gnome-calculator.spec
+++ b/gnome-calculator.spec
@@ -1,11 +1,12 @@
 Name:           gnome-calculator
 Version:        3.30.1
-Release:        2
+Release:        3
 Summary:        A GNOME desktop calculator application
 
 License:        GPLv3+
 URL:            https://wiki.gnome.org/Apps/Calculator
 Source0:        https://download.gnome.org/sources/%{name}/3.30/%{name}-%{version}.tar.xz
+Patch0000:      0001-Fix-compiler-errors.patch
 
 BuildRequires:  desktop-file-utils gettext itstool libmpc-devel libsoup-devel meson mpfr-devel
 BuildRequires:  pkgconfig(glib-2.0) pkgconfig(gtk+-3.0) pkgconfig(gtksourceview-3.0) pkgconfig(libxml-2.0)
@@ -65,5 +66,8 @@ desktop-file-validate %{buildroot}/%{_datadir}/applications/org.gnome.Calculator
 
 
 %changelog
+* Wed June 10 2020 lizhenhua <lizhenhua21@huawei.com> - 3.30.1-3
+- Add patch to fix compiler errors
+
 * Wed Nov 27 2019 huyan <hu.huyan@huawei.com> - 3.30.1-2
 - Package Initialization