diff --git a/build/VStudio/winfsp.vcxproj b/build/VStudio/winfsp.vcxproj
index 794359d3..80158255 100644
--- a/build/VStudio/winfsp.vcxproj
+++ b/build/VStudio/winfsp.vcxproj
@@ -122,15 +122,15 @@
     <ClCompile Include="..\..\src\sys\close.c" />
     <ClCompile Include="..\..\src\sys\create.c" />
     <ClCompile Include="..\..\src\sys\debug.c" />
-    <ClCompile Include="..\..\src\sys\devctrl.c" />
-    <ClCompile Include="..\..\src\sys\dirctrl.c" />
+    <ClCompile Include="..\..\src\sys\devctl.c" />
+    <ClCompile Include="..\..\src\sys\dirctl.c" />
     <ClCompile Include="..\..\src\sys\driver.c" />
     <ClCompile Include="..\..\src\sys\ea.c" />
     <ClCompile Include="..\..\src\sys\fastio.c" />
     <ClCompile Include="..\..\src\sys\fileinfo.c" />
     <ClCompile Include="..\..\src\sys\flush.c" />
-    <ClCompile Include="..\..\src\sys\fsctrl.c" />
-    <ClCompile Include="..\..\src\sys\lockctrl.c" />
+    <ClCompile Include="..\..\src\sys\fsctl.c" />
+    <ClCompile Include="..\..\src\sys\lockctl.c" />
     <ClCompile Include="..\..\src\sys\read.c" />
     <ClCompile Include="..\..\src\sys\resource.c" />
     <ClCompile Include="..\..\src\sys\security.c" />
diff --git a/build/VStudio/winfsp.vcxproj.filters b/build/VStudio/winfsp.vcxproj.filters
index 6cf337e4..bb42f848 100644
--- a/build/VStudio/winfsp.vcxproj.filters
+++ b/build/VStudio/winfsp.vcxproj.filters
@@ -27,10 +27,10 @@
     <ClCompile Include="..\..\src\sys\debug.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\sys\devctrl.c">
+    <ClCompile Include="..\..\src\sys\devctl.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\sys\dirctrl.c">
+    <ClCompile Include="..\..\src\sys\dirctl.c">
       <Filter>Source Files</Filter>
     </ClCompile>
     <ClCompile Include="..\..\src\sys\driver.c">
@@ -48,10 +48,10 @@
     <ClCompile Include="..\..\src\sys\flush.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\sys\fsctrl.c">
+    <ClCompile Include="..\..\src\sys\fsctl.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\sys\lockctrl.c">
+    <ClCompile Include="..\..\src\sys\lockctl.c">
       <Filter>Source Files</Filter>
     </ClCompile>
     <ClCompile Include="..\..\src\sys\read.c">
diff --git a/src/sys/devctrl.c b/src/sys/devctl.c
similarity index 94%
rename from src/sys/devctrl.c
rename to src/sys/devctl.c
index 132d7bd9..9a084f79 100644
--- a/src/sys/devctrl.c
+++ b/src/sys/devctl.c
@@ -1,5 +1,5 @@
 /**
- * @file sys/devctrl.c
+ * @file sys/devctl.c
  *
  * @copyright 2015 Bill Zissimopoulos
  */
diff --git a/src/sys/dirctrl.c b/src/sys/dirctl.c
similarity index 95%
rename from src/sys/dirctrl.c
rename to src/sys/dirctl.c
index 1f813e9b..09b51ec3 100644
--- a/src/sys/dirctrl.c
+++ b/src/sys/dirctl.c
@@ -1,5 +1,5 @@
 /**
- * @file sys/dirctrl.c
+ * @file sys/dirctl.c
  *
  * @copyright 2015 Bill Zissimopoulos
  */
diff --git a/src/sys/fsctrl.c b/src/sys/fsctl.c
similarity index 95%
rename from src/sys/fsctrl.c
rename to src/sys/fsctl.c
index 157efcf3..7735c4ea 100644
--- a/src/sys/fsctrl.c
+++ b/src/sys/fsctl.c
@@ -1,5 +1,5 @@
 /**
- * @file sys/fsctrl.c
+ * @file sys/fsctl.c
  *
  * @copyright 2015 Bill Zissimopoulos
  */
diff --git a/src/sys/lockctrl.c b/src/sys/lockctl.c
similarity index 94%
rename from src/sys/lockctrl.c
rename to src/sys/lockctl.c
index f9ccf12a..5fbf352f 100644
--- a/src/sys/lockctrl.c
+++ b/src/sys/lockctl.c
@@ -1,5 +1,5 @@
 /**
- * @file sys/lockctrl.c
+ * @file sys/lockctl.c
  *
  * @copyright 2015 Bill Zissimopoulos
  */