diff --git a/pkgs/applications/virtualization/xen/4.8.nix b/pkgs/applications/virtualization/xen/4.8.nix
index 1608fabf4b29..c7568d990626 100644
--- a/pkgs/applications/virtualization/xen/4.8.nix
+++ b/pkgs/applications/virtualization/xen/4.8.nix
@@ -167,8 +167,15 @@ callPackage (import ./generic.nix (rec {
     xenpmdpatch
   ];
 
-  # Fix build on Glibc 2.24.
-  NIX_CFLAGS_COMPILE = "-Wno-error=deprecated-declarations";
+  NIX_CFLAGS_COMPILE = [
+    # Fix build on Glibc 2.24
+    "-Wno-error=deprecated-declarations"
+    # Fix build with GCC8
+    "-Wno-error=maybe-uninitialized"
+    "-Wno-error=stringop-truncation"
+    "-Wno-error=format-truncation"
+    "-Wno-error=array-bounds"
+  ];
 
   postPatch = ''
     # Avoid a glibc >= 2.25 deprecation warnings that get fatal via -Werror.