diff --git a/asminc/zeropage.inc b/asminc/zeropage.inc
index 2d4b144db..8d508fc5a 100644
--- a/asminc/zeropage.inc
+++ b/asminc/zeropage.inc
@@ -13,10 +13,18 @@
         .globalzp       tmp1, tmp2, tmp3, tmp4
         .globalzp       regbank
 
+; FIXME: there must be a less ugly way to do this
+.ifp4510
+.else
+.ifp45GS02
+.else
+
         ; The following symbol is supplied for compatibility reasons only, it
         ; will get removed in future versions. Using it will cause a linker
         ; warning.
         .globalzp       sp
+.endif
+.endif
 
 
 ; The size of the register bank
diff --git a/libsrc/runtime/sp-compat.s b/libsrc/runtime/sp-compat.s
index 797fef47b..77972212f 100644
--- a/libsrc/runtime/sp-compat.s
+++ b/libsrc/runtime/sp-compat.s
@@ -5,7 +5,15 @@
 ; linker warning if it is used. Added after renaming "sp" to "c_sp".
 ;
 
+; FIXME: there must be a less ugly way to do this
+.ifp4510
+.else
+.ifp45GS02
+.else
+
 .include        "zeropage.inc"
 .export         sp := c_sp
 .assert         0, ldwarning, "Symbol 'sp' is deprecated - please use 'c_sp' instead"
 
+.endif
+.endif