diff --git a/configure.ac b/configure.ac
index a402f565..64a29440 100644
--- a/configure.ac
+++ b/configure.ac
@@ -222,7 +222,7 @@ dnl ** GNOME ************************************************************
 dnl *********************************************************************
 
 GUI_LIBS="$GUI_LIBS $GTK_LIBS"
-GUI_CFLAGS="$GUI_CFLAGS $GTK_CFLAGS -DG_DISABLE_CAST_CHECKS -DG_DISABLE_SINGLE_INCLUDES -DGDK_PIXBUF_DISABLE_SINGLE_INCLUDES -DGTK_DISABLE_SINGLE_INCLUDES"
+GUI_CFLAGS="$GUI_CFLAGS $GTK_CFLAGS -DG_DISABLE_SINGLE_INCLUDES -DGDK_PIXBUF_DISABLE_SINGLE_INCLUDES -DGTK_DISABLE_SINGLE_INCLUDES"
 
 #if test "$gnome" = yes; then
 #	AC_PATH_PROG(pkgconfigpath, pkg-config)
diff --git a/win32/hexchat.props b/win32/hexchat.props
index 3daf3084..143a27fc 100644
--- a/win32/hexchat.props
+++ b/win32/hexchat.props
@@ -15,7 +15,7 @@
 		<!-- YOU SHOULDN'T TOUCH ANYTHING BELOW -->
 
 		<!-- G_DISABLE_DEPRECATED is unfeasible due to g_completion_* -->
-		<OwnFlags>G_DISABLE_CAST_CHECKS;GDK_PIXBUF_DISABLE_DEPRECATED;G_DISABLE_SINGLE_INCLUDES;GDK_PIXBUF_DISABLE_SINGLE_INCLUDES;GTK_DISABLE_SINGLE_INCLUDES;HAVE_STRTOULL;strtoull=_strtoui64;strcasecmp=stricmp;strncasecmp=strnicmp;__inline__=__inline</OwnFlags>
+		<OwnFlags>GDK_PIXBUF_DISABLE_DEPRECATED;G_DISABLE_SINGLE_INCLUDES;GDK_PIXBUF_DISABLE_SINGLE_INCLUDES;GTK_DISABLE_SINGLE_INCLUDES;HAVE_STRTOULL;strtoull=_strtoui64;strcasecmp=stricmp;strncasecmp=strnicmp;__inline__=__inline</OwnFlags>
 		<DepsRoot>$(YourDepsPath)\$(PlatformName)</DepsRoot>
 		<GendefPath>$(YourGendefPath)</GendefPath>
 		<MsgfmtPath>$(YourMsgfmtPath)</MsgfmtPath>