diff --git a/src/devices/cpu/unsp/unsp.h b/src/devices/cpu/unsp/unsp.h
index c55daf885c7..cd25d6c55e7 100644
--- a/src/devices/cpu/unsp/unsp.h
+++ b/src/devices/cpu/unsp/unsp.h
@@ -287,8 +287,8 @@ private:
 
 
 	address_space_config m_program_config;
-	memory_access<23, 2, -1, ENDIANNESS_BIG>::cache m_cache;
-	memory_access<23, 2, -1, ENDIANNESS_BIG>::specific m_program;
+	memory_access<23, 1, -1, ENDIANNESS_BIG>::cache m_cache;
+	memory_access<23, 1, -1, ENDIANNESS_BIG>::specific m_program;
 
 	uint32_t m_debugger_temp;
 #if UNSP_LOG_OPCODES || UNSP_LOG_REGS