diff --git a/spack-environment/Makefile b/spack-environment/Makefile
index 4492e0a9f4c03d8dc6aefc97a8aea934b6dc4cc0..708b95293f709db2b639fadb9da364fa99ebe3d8 100644
--- a/spack-environment/Makefile
+++ b/spack-environment/Makefile
@@ -1,7 +1,7 @@
 MAKEFLAGS += -Orecurse
 
 SPACK ?= spack
-SPACK_INSTALL_FLAGS += --no-check-signature
+SPACK_INSTALL_FLAGS += --no-check-signature --show-log-on-error
 
 export SPACK_COLOR = always