diff --git a/src/env.sh b/src/env.sh
index 3790e1be..e4989916 100644
--- a/src/env.sh
+++ b/src/env.sh
@@ -26,7 +26,6 @@ _DEFAULT_HEADER_ASCII_ART="false"
 _DEFAULT_SIMPLE_OUTPUT="false"
 _DEFAULT_STOP_ON_FAILURE="false"
 _DEFAULT_SHOW_EXECUTION_TIME="true"
-_DEFAULT_DEV_MODE="false"
 _DEFAULT_VERBOSE="false"
 
 : "${BASHUNIT_PARALLEL_RUN:=${PARALLEL_RUN:=$_DEFAULT_PARALLEL_RUN}}"
@@ -35,7 +34,6 @@ _DEFAULT_VERBOSE="false"
 : "${BASHUNIT_SIMPLE_OUTPUT:=${SIMPLE_OUTPUT:=$_DEFAULT_SIMPLE_OUTPUT}}"
 : "${BASHUNIT_STOP_ON_FAILURE:=${STOP_ON_FAILURE:=$_DEFAULT_STOP_ON_FAILURE}}"
 : "${BASHUNIT_SHOW_EXECUTION_TIME:=${SHOW_EXECUTION_TIME:=$_DEFAULT_SHOW_EXECUTION_TIME}}"
-: "${BASHUNIT_DEV_MODE:=${DEV_MODE:=$_DEFAULT_DEV_MODE}}"
 : "${BASHUNIT_VERBOSE:=${VERBOSE:=$_DEFAULT_VERBOSE}}"
 
 function env::is_parallel_run_enabled() {
@@ -63,7 +61,7 @@ function env::is_show_execution_time_enabled() {
 }
 
 function env::is_dev_mode_enabled() {
-  [[ "$BASHUNIT_DEV_MODE" == "true" ]]
+  [[ -f "$BASHUNIT_DEV_LOG" ]]
 }
 
 function env::is_verbose_enabled() {
diff --git a/tests/unit/globals_test.sh b/tests/unit/globals_test.sh
index e8d4aa28..574188a2 100644
--- a/tests/unit/globals_test.sh
+++ b/tests/unit/globals_test.sh
@@ -1,6 +1,10 @@
 #!/bin/bash
 set -euo pipefail
 
+function tear_down_after_script() {
+  export BASHUNIT_DEV_LOG=""
+}
+
 function set_up() {
   BASHUNIT_DEV_LOG=$(temp_file)
   export BASHUNIT_DEV_LOG
@@ -10,14 +14,6 @@ function tear_down() {
   rm "$BASHUNIT_DEV_LOG"
 }
 
-function set_up_before_script() {
-  export BASHUNIT_DEV_MODE=true
-}
-
-function tear_down_after_script() {
-  export BASHUNIT_DEV_MODE=$_DEFAULT_DEV_MODE
-}
-
 function test_globals_current_dir() {
   assert_same "tests/unit" "$(current_dir)"
 }