diff --git a/source/build/src/defs.cpp b/source/build/src/defs.cpp
index d00fe9ceb..79328ba93 100644
--- a/source/build/src/defs.cpp
+++ b/source/build/src/defs.cpp
@@ -678,7 +678,10 @@ static int32_t defsparser(scriptfile *script)
             artheader_t local;
             int32_t headerval = E_ReadArtFileHeader(fil, fn, &local);
             if (headerval != 0)
+            {
+            	kclose(fil);
                 break;
+            }
 
             if (havetile)
             {
diff --git a/source/build/src/engine.cpp b/source/build/src/engine.cpp
index 9892651d8..1141e1076 100644
--- a/source/build/src/engine.cpp
+++ b/source/build/src/engine.cpp
@@ -9134,7 +9134,10 @@ int32_t loadboard(const char *filename, char flags, vec3_t *dapos, int16_t *daan
         { mapversion = 7; return -1; }
 
     if (kread(fil, &mapversion, 4) != 4)
+    {
+    	kclose(fil);
         return -2;
+    }
 
     {
         int32_t ok = 0;
diff --git a/source/build/src/lunatic.cpp b/source/build/src/lunatic.cpp
index e609f8869..4df5ffd37 100644
--- a/source/build/src/lunatic.cpp
+++ b/source/build/src/lunatic.cpp
@@ -73,7 +73,10 @@ static int32_t read_whole_file(const char *fn, char **retbufptr)
 
     flen = kfilelength(fid);
     if (flen == 0)
+    {
+    	kclose(fid);
         return 5;
+    }
 
     buf = (char *)Xmalloc(flen+1);
 
diff --git a/source/build/src/tiles.cpp b/source/build/src/tiles.cpp
index 260bf71f8..9f1c3aa55 100644
--- a/source/build/src/tiles.cpp
+++ b/source/build/src/tiles.cpp
@@ -440,7 +440,10 @@ static int32_t E_ReadArtFileOfID(int32_t tilefilei)
         artheader_t local;
         int const headerval = E_ReadArtFileHeader(fil, fn, &local);
         if (headerval != 0)
+        {
+        	kclose(fil);
             return headerval;
+        }
 
         if (permap)
         {
diff --git a/source/duke3d/src/anim.cpp b/source/duke3d/src/anim.cpp
index c64798b90..55838ad77 100644
--- a/source/duke3d/src/anim.cpp
+++ b/source/duke3d/src/anim.cpp
@@ -295,6 +295,7 @@ int32_t Anim_Play(const char *fn)
         {
             OSD_Printf("Error initializing VPX codec.\n");
             animvpx_restore_glstate();
+            kclose(handle);
             return 0;
         }
 
diff --git a/source/duke3d/src/savegame.cpp b/source/duke3d/src/savegame.cpp
index 07112ae8b..b4e6f62c4 100644
--- a/source/duke3d/src/savegame.cpp
+++ b/source/duke3d/src/savegame.cpp
@@ -166,7 +166,10 @@ static void ReadSaveGameHeaders_CACHE1D(CACHE1D_FIND_REC *f)
             if (k > 0)
                 msv.isOldVer = 1;
             else
+            {
+            	kclose(fil);
                 continue;
+            }
             // else h.savename is all zeros (fatal failure, like wrong header
             // magic or too short header)
         }