diff --git a/src/mame/amiga/amiga_m.cpp b/src/mame/amiga/amiga_m.cpp
index 5beb295704d..d529e683e7e 100644
--- a/src/mame/amiga/amiga_m.cpp
+++ b/src/mame/amiga/amiga_m.cpp
@@ -136,16 +136,6 @@ const char *const amiga_state::s_custom_reg_names[0x100] =
 	"UNK1F8",       "UNK1FA",       "FMODE",        "UNK1FE"
 };
 
-constexpr XTAL amiga_state::CLK_28M_PAL;
-constexpr XTAL amiga_state::CLK_7M_PAL;
-constexpr XTAL amiga_state::CLK_C1_PAL;
-constexpr XTAL amiga_state::CLK_E_PAL;
-
-constexpr XTAL amiga_state::CLK_28M_NTSC;
-constexpr XTAL amiga_state::CLK_7M_NTSC;
-constexpr XTAL amiga_state::CLK_C1_NTSC;
-constexpr XTAL amiga_state::CLK_E_NTSC;
-
 /*************************************
  *
  *  Machine reset