diff --git a/Makefile b/Makefile
index d09d2c2..70c3d79 100644
--- a/Makefile
+++ b/Makefile
@@ -24,7 +24,11 @@
 MAKEFLAGS += -rR --include-dir=$(CURDIR)
 
 UNAME := $(shell uname)
-ifeq (MINGW, $(findstring MINGW, $(UNAME)))
+ifeq (MSYS, $(findstring MSYS, $(UNAME)))
+DISABLE_TRYRUN=y
+HOST_OS=MSYS
+PWD_OPT=-W
+else ifeq (MINGW, $(findstring MINGW, $(UNAME)))
 HOST_OS=MINGW
 PWD_OPT=-W
 DISABLE_TRYRUN=y
diff --git a/zephyr-env.sh b/zephyr-env.sh
index 2027ae5..d758a8d 100644
--- a/zephyr-env.sh
+++ b/zephyr-env.sh
@@ -35,10 +35,10 @@
 # zephyr-env_install.bash in your home directory. It will be automatically
 # run (if it exists) by this script.
 
-uname | grep -q MINGW && MINGW_OPT="-W"
+uname | grep -q -P "MINGW|MSYS" && PWD_OPT="-W"
 
 # identify OS source tree root directory
-export ZEPHYR_BASE=$( builtin cd "$( dirname "$DIR" )" && pwd ${MINGW_OPT})
+export ZEPHYR_BASE=$( builtin cd "$( dirname "$DIR" )" && pwd ${PWD_OPT})
 
 scripts_path=${ZEPHYR_BASE}/scripts
 scripts_path=$(echo "/$scripts_path" | sed 's/\\/\//g' | sed 's/://')