diff --git a/src/mame/chromatics/cgc7900.cpp b/src/mame/chromatics/cgc7900.cpp
index 40911469fb6..b201801e85f 100644
--- a/src/mame/chromatics/cgc7900.cpp
+++ b/src/mame/chromatics/cgc7900.cpp
@@ -310,7 +310,7 @@ void cgc7900_state::disk_command_w(u16 data)
 
 u16 cgc7900_state::unmapped_r()
 {
-	return rand();
+	return machine().rand();
 }
 
 /***************************************************************************
diff --git a/src/mame/konami/konamim2.cpp b/src/mame/konami/konamim2.cpp
index 817024f33e7..7a48561baee 100644
--- a/src/mame/konami/konamim2.cpp
+++ b/src/mame/konami/konamim2.cpp
@@ -490,7 +490,7 @@ uint16_t konamim2_state::konami_io0_r(offs_t offset)
 		case 8: return ioport("P5")->read();
 	}
 
-	//return rand();
+	//return machine().rand();
 	return 0;
 }
 
diff --git a/src/mame/quantel/dpb7000.cpp b/src/mame/quantel/dpb7000.cpp
index 09dd50ec7dd..75a788ac4db 100644
--- a/src/mame/quantel/dpb7000.cpp
+++ b/src/mame/quantel/dpb7000.cpp
@@ -3425,7 +3425,7 @@ uint8_t dpb7000_state::tablet_rdl_r()
 	//if (m_tablet_mux == 3)
 		//m_tablet_state = 0;
 
-	m_tablet_counter_latch = rand() & 0xfff;
+	m_tablet_counter_latch = machine().rand() & 0xfff;
 	LOGMASKED(LOG_TABLET, "%s: Random latch: %04x\n", machine().describe_context(), m_tablet_counter_latch);
 	uint8_t data = (uint8_t)m_tablet_counter_latch;
 	LOGMASKED(LOG_TABLET, "%s: Tablet RDL Read (Mux %d): %02x\n", machine().describe_context(), m_tablet_mux, data);