diff --git a/variables.mk b/variables.mk
index 5abcba12..fcda57ef 100644
--- a/variables.mk
+++ b/variables.mk
@@ -293,12 +293,12 @@ endif
 # build output directory for compilation
 #########################################################################################
 # output for all project builds
-generated_src_name ?= generated-src
-gen_dir             = $(sim_dir)/$(generated_src_dir_name)
+generated_src_name ?=generated-src
+gen_dir             =$(sim_dir)/$(generated_src_name)
 # per-project output directory
-build_dir           = $(gen_dir)/$(long_name)
+build_dir           =$(gen_dir)/$(long_name)
 # final generated collateral per-project
-GEN_COLLATERAL_DIR ?= $(build_dir)/gen-collateral
+GEN_COLLATERAL_DIR ?=$(build_dir)/gen-collateral
 
 #########################################################################################
 # assembly/benchmark variables