diff --git a/ArchiSteamFarm/ArchiSteamFarm.csproj b/ArchiSteamFarm/ArchiSteamFarm.csproj
index d62ce9ddf..492b4765f 100644
--- a/ArchiSteamFarm/ArchiSteamFarm.csproj
+++ b/ArchiSteamFarm/ArchiSteamFarm.csproj
@@ -189,7 +189,7 @@
     </PostBuildEvent>
     <PostBuildEvent Condition=" '$(OS)' == 'Unix' AND '$(ConfigurationName)' == 'Release' ">
       if [ -f "$(SolutionDir)mono_envsetup.sh" ]; then
-        source "$(SolutionDir)mono_envsetup.sh"
+        . "$(SolutionDir)mono_envsetup.sh"
       fi
 
       mkdir -p "$(SolutionDir)out/config"
diff --git a/ConfigGenerator/ConfigGenerator.csproj b/ConfigGenerator/ConfigGenerator.csproj
index 6cb5b32ba..0e6f546ed 100644
--- a/ConfigGenerator/ConfigGenerator.csproj
+++ b/ConfigGenerator/ConfigGenerator.csproj
@@ -124,7 +124,7 @@
     </PostBuildEvent>
     <PostBuildEvent Condition=" '$(OS)' == 'Unix' AND '$(ConfigurationName)' == 'Release' ">
       if [ -f "$(SolutionDir)mono_envsetup.sh" ]; then
-        source "$(SolutionDir)mono_envsetup.sh"
+        . "$(SolutionDir)mono_envsetup.sh"
       fi
 
       mono --llvm --server -O=all "$(SolutionDir)tools/ILRepack/ILRepack.exe" /ndebug /internalize /parallel /targetplatform:v4 /wildcards /out:"$(SolutionDir)out/ASF-ConfigGenerator.exe" "$(TargetDir)$(TargetName).exe" "$(TargetDir)*.dll"
diff --git a/GUI/GUI.csproj b/GUI/GUI.csproj
index 570633b2b..262fce2d4 100644
--- a/GUI/GUI.csproj
+++ b/GUI/GUI.csproj
@@ -209,7 +209,7 @@
     </PostBuildEvent>
     <PostBuildEvent Condition=" '$(OS)' == 'Unix' AND '$(ConfigurationName)' == 'Release' ">
       if [ -f "$(SolutionDir)mono_envsetup.sh" ]; then
-        source "$(SolutionDir)mono_envsetup.sh"
+        . "$(SolutionDir)mono_envsetup.sh"
       fi
 
       mono --llvm --server -O=all "$(SolutionDir)tools/ILRepack/ILRepack.exe" /ndebug /internalize /parallel /targetplatform:v4 /wildcards /out:"$(SolutionDir)out/ASF-GUI.exe" "$(TargetDir)$(TargetName).exe" "$(TargetDir)*.dll"