diff --git a/source/build/src/polymost.cpp b/source/build/src/polymost.cpp
index 4cee1c76e..ecebcca6a 100644
--- a/source/build/src/polymost.cpp
+++ b/source/build/src/polymost.cpp
@@ -1320,7 +1320,7 @@ static void polymost_flatskyrender(FVector2 const* const dpxy, int32_t const n,
         dapskybits = 0;
     }
 
-    dapyoffs = isSWALL()? 16*1024 : isDuke() && globalpicnum == 89 ? 17 * 1024 : 32 * 1024;
+    dapyoffs = isExhumed()? 64*1024 : isSWALL()? 16*1024 : isDuke() && globalpicnum == 89 ? 17 * 1024 : 32 * 1024;
     ghoriz = (qglobalhoriz*(1.f/65536.f)-float(ydimen>>1))*dapyoffs*(1.f/65536.f)+float(ydimen>>1)+ghorizcorrect;
 
     float const dd = fxdimen*.0000001f; //Adjust sky depth based on screen size!
diff --git a/source/core/version.h b/source/core/version.h
index 66b5484b9..a6c3b1c43 100644
--- a/source/core/version.h
+++ b/source/core/version.h
@@ -41,11 +41,11 @@ const char *GetVersionString();
 
 /** Lots of different version numbers **/
 
-#define VERSIONSTR "1.4pre"
+#define VERSIONSTR "1.5pre"
 
 // The version as seen in the Windows resource
-#define RC_FILEVERSION 1,4,9999,0
-#define RC_PRODUCTVERSION 1,4,9999,0
+#define RC_FILEVERSION 1,5,9999,0
+#define RC_PRODUCTVERSION 1,5,9999,0
 #define RC_PRODUCTVERSION2 VERSIONSTR
 // These are for content versioning.
 #define VER_MAJOR 4
@@ -53,7 +53,7 @@ const char *GetVersionString();
 #define VER_REVISION 0
 
 #define ENG_MAJOR 1
-#define ENG_MINOR 4
+#define ENG_MINOR 5
 #define ENG_REVISION 0
 
 // More stuff that needs to be different for derivatives.