diff --git a/inc/crn_decomp.h b/inc/crn_decomp.h
index 4d81928..50b63db 100644
--- a/inc/crn_decomp.h
+++ b/inc/crn_decomp.h
@@ -377,7 +377,11 @@ namespace crnd
 #ifdef _WIN64
    typedef uint64 ptr_bits;
 #else
-   typedef uint32 ptr_bits;
+   #ifdef __x86_64__
+      typedef uint64 ptr_bits;
+   #else
+      typedef uint32 ptr_bits;
+   #endif
 #endif
 
    template<typename T> struct int_traits { enum { cMin = crnd::cINT32_MIN, cMax = crnd::cINT32_MAX, cSigned = true }; };