diff --git a/wxGTK3-3.0.2-fix-percent-dnd.patch b/wxGTK3-3.0.2-fix-percent-dnd.patch
new file mode 100644
index 0000000..e887055
--- /dev/null
+++ b/wxGTK3-3.0.2-fix-percent-dnd.patch
@@ -0,0 +1,62 @@
+commit 3b047b58ceb4a0bf11a607b3a5a47697d70de946
+Author: Tim Kosse <tim.kosse@filezilla-project.org>
+Date:   Mon Sep 14 11:42:38 2015 +0200
+
+    Escape filenames in wxFileDataObject::GetDataSize/GetDataHere
+    
+    On wxGTK, wxFileDataObject::SetData calls g_filename_from_uri which
+    percent-decodes URIs. No corresponding percent-encoding was done in
+    wxFileDataObject::GetDataSize/GetDataHere. Use g_filename_to_uri instead in so
+    that filenames are properly escaped.
+    
+    This commit also fixes the data being truncated if it contains non-ASCII
+    characters on wide-character builds, see the memcpy arguments in the original
+    code.
+
+diff --git a/src/gtk/dataobj.cpp b/src/gtk/dataobj.cpp
+index d786257..1754d6c 100644
+--- a/src/gtk/dataobj.cpp
++++ b/src/gtk/dataobj.cpp
+@@ -235,16 +235,21 @@ wxTextDataObject::GetAllFormats(wxDataFormat *formats,
+ 
+ bool wxFileDataObject::GetDataHere(void *buf) const
+ {
+-    wxString filenames;
++    char* out = reinterpret_cast<char*>(buf);
+ 
+     for (size_t i = 0; i < m_filenames.GetCount(); i++)
+     {
+-        filenames += wxT("file:");
+-        filenames += m_filenames[i];
+-        filenames += wxT("\r\n");
++        char* uri = g_filename_to_uri(m_filenames[i].mbc_str(), 0, 0);
++        if (uri)
++        {
++            size_t const len = strlen(uri);
++            strcpy(out, uri);
++            out += len;
++            *(out++) = '\r';
++            *(out++) = '\n';
++        }
+     }
+-
+-    memcpy( buf, filenames.mbc_str(), filenames.length() + 1 );
++    *out = 0;
+ 
+     return true;
+ }
+@@ -255,9 +260,11 @@ size_t wxFileDataObject::GetDataSize() const
+ 
+     for (size_t i = 0; i < m_filenames.GetCount(); i++)
+     {
+-        // This is junk in UTF-8
+-        res += m_filenames[i].length();
+-        res += 5 + 2; // "file:" (5) + "\r\n" (2)
++        char* uri = g_filename_to_uri(m_filenames[i].mbc_str(), 0, 0);
++        if (uri) {
++            res += strlen(uri) + 2; // Including "\r\n"
++            g_free(uri);
++        }
+     }
+ 
+     return res + 1;
diff --git a/wxGTK3.spec b/wxGTK3.spec
index c263878..bbcf039 100644
--- a/wxGTK3.spec
+++ b/wxGTK3.spec
@@ -11,7 +11,7 @@
 
 Name:           %{wxgtkname}
 Version:        3.0.2
-Release:        24%{?dist}
+Release:        25%{?dist}
 Summary:        GTK port of the wxWidgets GUI library
 License:        wxWidgets
 Group:          System Environment/Libraries
@@ -85,6 +85,10 @@ Patch16:        %{name}-%{version}-wxgetkeystate.patch
 # For more details, see the upstream commit:
 # https://github.com/wxWidgets/wxWidgets/commit/148971013ee48926dfe153ca39c94be92acde37c
 Patch17:        %{name}-%{version}-draw-elliptic-arc-crash.patch
+# Fixes drag and drop issues with filenames containing percent symbols
+# For more details, see the upstream commit:
+# https://github.com/wxWidgets/wxWidgets/commit/3b047b58ceb4a0bf11a607b3a5a47697d70de946
+Patch18:        %{name}-%{version}-fix-percent-dnd.patch
 
 BuildRequires:  gtk%{gtkver}-devel
 #Note webkitgtk (GTK2) does not appear to be supported
@@ -199,25 +203,7 @@ This package provides XML documentation for the %{srcname} library.
 
 
 %prep
-%setup -q -n %{srcname}-%{version} -a 1
-%patch0 -p1 -b .abicheck
-%patch1 -p1 -b .upstreamfixes
-%patch2 -p1 -b .spinbutt
-%patch3 -p1 -b .checkradio
-%patch4 -p1 -b .wayland
-%patch5 -p1 -b .stc-gcc6
-%patch6 -p1 -b .strings-tests-gcc6
-%patch7 -p1 -b .getbestsize
-%patch8 -p1 -b .wayland-window-sizing1
-%patch9 -p1 -b .wayland-window-sizing2
-%patch10 -p1 -b .media-docs
-%patch11 -p1 -b .size-alloc-fix
-%patch12 -p1 -b .font-enumerator-stop
-%patch13 -p1 -b .init-from-font
-%patch14 -p1 -b .gtk-show-uri
-%patch15 -p1 -b .gtk-show-uri1
-%patch16 -p1 -b .wxgetkeystate
-%patch17 -p1 -b .draw-elliptic-arc-crash
+%autosetup -n %{srcname}-%{version} -a 1 -p1
 
 # patch some installed files to avoid conflicts with 2.8.*
 sed -i -e 's|aclocal)|aclocal/wxwin3.m4)|' Makefile.in
@@ -374,6 +360,10 @@ fi
 %doc docs/doxygen/out/xml/*
 
 %changelog
+* Tue Oct 04 2016 Jeremy Newton <alexjnewt AT hotmail DOT com> - 3.0.2-25
+- Add patch to fix bug 1381767
+- Clean up spec file with autosetup
+
 * Sat Sep 24 2016 Scott Talbert <swt@techie.net> - 3.0.2-24
 - Add patch to fix crash in wxGCDC::DrawEllipticArc()