diff --git a/Tools/CMake/AMReX_Config.H.in b/Tools/CMake/AMReX_Config.H.in
index cd03732c413..3b29103dbf5 100644
--- a/Tools/CMake/AMReX_Config.H.in
+++ b/Tools/CMake/AMReX_Config.H.in
@@ -42,6 +42,8 @@
 #cmakedefine AMREX_PARTICLES
 #cmakedefine AMREX_USE_HDF5
 #cmakedefine AMREX_USE_HDF5_ASYNC
+#cmakedefine AMREX_USE_HYPRE
+#cmakedefine AMREX_USE_PETSC
 #ifdef __cplusplus@COMP_DECLS@
 @OMP_DECLS@
 #endif