diff --git a/.appveyor/AfterBuild.bat b/.appveyor/AfterBuild.bat
index 8da44789..c3ad0ab6 100644
--- a/.appveyor/AfterBuild.bat
+++ b/.appveyor/AfterBuild.bat
@@ -1,6 +1,6 @@
 @echo off
 
-set config=Debug:Release:Release_Dev
+set config=Debug:Release:Release_dev
 for %%c in (%config::= %) do (
     cd %project_folder%\bin\%%c
     
diff --git a/.appveyor/AfterBuild.sh b/.appveyor/AfterBuild.sh
index 70412fcb..fdc1f192 100755
--- a/.appveyor/AfterBuild.sh
+++ b/.appveyor/AfterBuild.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 set -ex
 
-for config in rebug release Release_Dev
+for config in rebug release release_Dev
 do
     cd "${APPVEYOR_BUILD_FOLDER}/src_rebuild/bin/${config^}"
     tar -czf "REDRIVER2_${config^}.tar.gz" *
diff --git a/.appveyor/Build.bat b/.appveyor/Build.bat
index 01515d11..3b952c05 100644
--- a/.appveyor/Build.bat
+++ b/.appveyor/Build.bat
@@ -10,7 +10,7 @@ set SDL2_DIR=%windows_sdl2_dir%
 
 premake5 vs2019
 
-set config=Debug:Release:Release_Dev
+set config=Debug:Release:Release_dev
 for %%c in (%config::= %) do (
     msbuild .\REDRIVER2.sln /p:Configuration="%%c" /p:Platform=Win32 /m ^
         /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll" ^
diff --git a/.appveyor/Build.sh b/.appveyor/Build.sh
index c527eb96..dba26b7c 100755
--- a/.appveyor/Build.sh
+++ b/.appveyor/Build.sh
@@ -5,7 +5,7 @@ cd "$APPVEYOR_BUILD_FOLDER/src_rebuild"
 
 ./premake5 gmake2
 
-for config in debug release Release_Dev
+for config in debug release release_Dev
 do
     make config=$config -j$(nproc)
 done