diff --git a/var/spack/repos/builtin/packages/xsdk/package.py b/var/spack/repos/builtin/packages/xsdk/package.py
index f1e458fb083..ebb5a11f7e3 100644
--- a/var/spack/repos/builtin/packages/xsdk/package.py
+++ b/var/spack/repos/builtin/packages/xsdk/package.py
@@ -86,8 +86,8 @@ class Xsdk(Package):
     depends_on('magma@2.4.0', when='@0.4.0 +cuda')
     depends_on('magma@2.2.0', when='@0.3.0 +cuda')
 
-    depends_on('amrex@develop', when='@develop %intel')
-    depends_on('amrex@develop', when='@develop %gcc')
+    depends_on('amrex@develop+sundials', when='@develop %intel')
+    depends_on('amrex@develop+sundials', when='@develop %gcc')
     depends_on('amrex@18.10.1', when='@0.4.0 %intel')
     depends_on('amrex@18.10.1', when='@0.4.0 %gcc')