diff --git a/pkgs/by-name/fr/freefilesync/Makefile.patch b/pkgs/by-name/fr/freefilesync/Makefile.patch
index 41e5617028fc..7e2a3db10590 100644
--- a/pkgs/by-name/fr/freefilesync/Makefile.patch
+++ b/pkgs/by-name/fr/freefilesync/Makefile.patch
@@ -9,15 +9,13 @@ index 9d81055..aed0f30 100644
  
  CXXFLAGS += -std=c++23 -pipe -DWXINTL_NO_GETTEXT_MACRO -I../.. -I../../zenXml -include "zen/i18n.h" -include "zen/warn_static.h" \
             -Wall -Wfatal-errors -Wmissing-include-dirs -Wswitch-enum -Wcast-align -Wnon-virtual-dtor -Wno-unused-function -Wshadow -Wno-maybe-uninitialized \
-@@ -17,9 +17,10 @@ LDFLAGS  += `pkg-config --libs libcurl` -lidn2
- CXXFLAGS += `pkg-config --cflags libssh2`
+@@ -21,8 +21,9 @@ CXXFLAGS += `pkg-config --cflags libssh2`
  LDFLAGS  += `pkg-config --libs libssh2`
  
--CXXFLAGS += `pkg-config --cflags gtk+-2.0`
-+CXXFLAGS += `pkg-config --cflags gtk+-3.0`
+ CXXFLAGS += `pkg-config --cflags gtk+-3.0`
 +LDFLAGS += `pkg-config --libs gtk+-3.0`
  #treat as system headers so that warnings are hidden:
--CXXFLAGS += -isystem/usr/include/gtk-2.0
+-CXXFLAGS += -isystem/usr/include/gtk-3.0
 +CXXFLAGS += -isystem@gtk3-dev@/include/gtk-3.0
  
  #support for SELinux (optional)
@@ -33,15 +31,13 @@ index 0be46c9..f510284 100644
  
  CXXFLAGS += -std=c++23 -pipe -DWXINTL_NO_GETTEXT_MACRO -I../../.. -I../../../zenXml -include "zen/i18n.h" -include "zen/warn_static.h" \
             -Wall -Wfatal-errors -Wmissing-include-dirs -Wswitch-enum -Wcast-align -Wnon-virtual-dtor -Wno-unused-function -Wshadow -Wno-maybe-uninitialized \
-@@ -8,9 +8,10 @@ CXXFLAGS += -std=c++23 -pipe -DWXINTL_NO_GETTEXT_MACRO -I../../.. -I../../../zen
- LDFLAGS += -s `wx-config --libs std, aui, richtext --debug=no` -pthread
+@@ -9,8 +9,9 @@ LDFLAGS += -s `wx-config --libs std, aui, richtext --debug=no` -pthread
  
  
--CXXFLAGS += `pkg-config --cflags gtk+-2.0`
-+CXXFLAGS += `pkg-config --cflags gtk+-3.0`
+ CXXFLAGS += `pkg-config --cflags gtk+-3.0`
 +LDFLAGS += `pkg-config --libs gtk+-3.0`
  #treat as system headers so that warnings are hidden:
--CXXFLAGS += -isystem/usr/include/gtk-2.0
+-CXXFLAGS += -isystem/usr/include/gtk-3.0
 +CXXFLAGS += -isystem@gtk3-dev@/include/gtk-3.0
  
  cppFiles=
diff --git a/pkgs/by-name/fr/freefilesync/package.nix b/pkgs/by-name/fr/freefilesync/package.nix
index f9ec4d5035f0..e374524bc8e5 100644
--- a/pkgs/by-name/fr/freefilesync/package.nix
+++ b/pkgs/by-name/fr/freefilesync/package.nix
@@ -29,7 +29,7 @@ let
 in
 stdenv.mkDerivation (finalAttrs: {
   pname = "freefilesync";
-  version = "14.5";
+  version = "14.6";
 
   src = fetchurl {
     url = "https://freefilesync.org/download/FreeFileSync_${finalAttrs.version}_Source.zip";
@@ -38,7 +38,7 @@ stdenv.mkDerivation (finalAttrs: {
       rm -f "$out"
       tryDownload "$url" "$out"
     '';
-    hash = "sha256-+qfj1zf3V5xxtvXgCa0QDDRhEPQ3Qzii5eKiMySuUUY=";
+    hash = "sha256-OST2QIhPhKl9Qh4nHIno5XAJmLPNki0bU5A1ZXcUVTw=";
   };
 
   sourceRoot = ".";
@@ -60,6 +60,10 @@ stdenv.mkDerivation (finalAttrs: {
     })
   ];
 
+  postPatch = ''
+    touch zen/warn_static.h
+  '';
+
   nativeBuildInputs = [
     copyDesktopItems
     pkg-config