diff --git a/source/build/include/compat.h b/source/build/include/compat.h
index 1171eca06..76e764695 100644
--- a/source/build/include/compat.h
+++ b/source/build/include/compat.h
@@ -1278,12 +1278,11 @@ char *Bstrlwr(char *);
 char *Bstrupr(char *);
 #endif
 
-
 ////////// Miscellaneous //////////
 
+int Bgetpagesize(void);
 uint32_t Bgetsysmemsize(void);
 
-
 ////////// PANICKING ALLOCATION WRAPPERS //////////
 
 #ifdef DEBUGGINGAIDS
diff --git a/source/build/src/cache1d.cpp b/source/build/src/cache1d.cpp
index b0c9f182a..1c1673476 100644
--- a/source/build/src/cache1d.cpp
+++ b/source/build/src/cache1d.cpp
@@ -224,8 +224,9 @@ int32_t cacheFindBlock(int32_t newbytes, int32_t *besto, int32_t *bestz)
 
 void cacheAllocateBlock(intptr_t* newhandle, int32_t newbytes, char* newlockptr)
 {
-    // Make all requests a multiple of 16 bytes
-    newbytes = (newbytes + 15) & ~0xf;
+    // Make all requests a multiple of the system page size
+    int const pageSize = Bgetpagesize();
+    newbytes = (newbytes + pageSize-1) & ~(pageSize-1);
 
 #ifdef DEBUGGINGAIDS
     if (EDUKE32_PREDICT_FALSE(!newlockptr || *newlockptr == 0))
diff --git a/source/build/src/compat.cpp b/source/build/src/compat.cpp
index 7ff48512b..9e99a3ba0 100644
--- a/source/build/src/compat.cpp
+++ b/source/build/src/compat.cpp
@@ -577,6 +577,25 @@ char *Bstrupr(char *s)
 }
 #endif
 
+#define BMAXPAGESIZE 8192
+
+int Bgetpagesize(void)
+{
+    static int pageSize = -1;
+
+    if (pageSize == -1)
+    {
+#ifdef _WIN32
+        SYSTEM_INFO system_info;
+        GetSystemInfo(&system_info);
+        pageSize = system_info.dwPageSize;
+#else
+        pageSize = sysconf(_SC_PAGESIZE);
+#endif
+    }
+
+    return (unsigned)pageSize < BMAXPAGESIZE ? pageSize : BMAXPAGESIZE;
+}
 
 //
 // Bgetsysmemsize() -- gets the amount of system memory in the machine
diff --git a/source/build/src/tiles.cpp b/source/build/src/tiles.cpp
index 5ea8d6b9f..84f60d4f6 100644
--- a/source/build/src/tiles.cpp
+++ b/source/build/src/tiles.cpp
@@ -603,7 +603,7 @@ int32_t artLoadFiles(const char *filename, int32_t askedsize)
 
     //cachesize = min((int32_t)((Bgetsysmemsize()/100)*60),max(artsize,askedsize));
     cachesize = (Bgetsysmemsize() <= (uint32_t)askedsize) ? (int32_t)((Bgetsysmemsize() / 100) * 60) : askedsize;
-    pic = Xaligned_alloc(16, cachesize);
+    pic = Xaligned_alloc(Bgetpagesize(), cachesize);
     cacheInitBuffer((intptr_t) pic, cachesize);
 
     artUpdateManifest();