diff --git a/r5dev/bsplib/bsplib.cpp b/r5dev/bsplib/bsplib.cpp
index 1e84ec60..c1de71e2 100644
--- a/r5dev/bsplib/bsplib.cpp
+++ b/r5dev/bsplib/bsplib.cpp
@@ -1,6 +1,6 @@
 #include "core/stdafx.h"
 #include "tier0/cvar.h"
-#include "common/psuedodefs.h"
+#include "common/pseudodefs.h"
 #include "bsplib/bsplib.h"
 
 //-----------------------------------------------------------------------------
diff --git a/r5dev/r5dev.vcxproj b/r5dev/r5dev.vcxproj
index f6378d8b..1e8dbcec 100644
--- a/r5dev/r5dev.vcxproj
+++ b/r5dev/r5dev.vcxproj
@@ -115,7 +115,7 @@
     <ClInclude Include="client\IVEngineClient.h" />
     <ClInclude Include="common\opcodes.h" />
     <ClInclude Include="common\protocol.h" />
-    <ClInclude Include="common\psuedodefs.h" />
+    <ClInclude Include="common\pseudodefs.h" />
     <ClInclude Include="core\init.h" />
     <ClInclude Include="core\logdef.h" />
     <ClInclude Include="core\r5dev.h" />
diff --git a/r5dev/r5dev.vcxproj.filters b/r5dev/r5dev.vcxproj.filters
index d2e7e5bf..20dc7022 100644
--- a/r5dev/r5dev.vcxproj.filters
+++ b/r5dev/r5dev.vcxproj.filters
@@ -824,7 +824,7 @@
     <ClInclude Include="bsplib\bsplib.h">
       <Filter>sdk\bsplib</Filter>
     </ClInclude>
-    <ClInclude Include="common\psuedodefs.h">
+    <ClInclude Include="common\pseudodefs.h">
       <Filter>sdk\common</Filter>
     </ClInclude>
   </ItemGroup>