diff --git a/include/m6809/m6809_math.mfk b/include/m6809/m6809_math.mfk
index 51fa1a27..e22b4cba 100644
--- a/include/m6809/m6809_math.mfk
+++ b/include/m6809/m6809_math.mfk
@@ -31,16 +31,16 @@ noinline asm word __divmod_u8u8u8u8(word register(a) p, word register(b) q) {
     ldb #8
     stb ,-s
     clrb
-__divmod_u8u8u8u8_loop:
+.__divmod_u8u8u8u8_loop:
     asla
     rolb
     cmpb 2,s
-    blo __divmod_u8u8u8u8_skip
+    blo .__divmod_u8u8u8u8_skip
     subb 2,s
     inca
-__divmod_u8u8u8u8_skip:
+.__divmod_u8u8u8u8_skip:
     dec ,s
-    bne __divmod_u8u8u8u8_loop
+    bne .__divmod_u8u8u8u8_loop
     stb 2,s
     leas 1,s
     puls pc,b,cc
@@ -53,18 +53,18 @@ noinline asm word __divmod_u16u16u16u16(word register(x) p, word register(d) q)
     pshs b
     clrb
     clra
-__divmod_u16u16u16u16_loop:
+.__divmod_u16u16u16u16_loop:
     asl 5,s
     rol 4,s
     rolb
     rola
     cmpd 2,s
-    blo __divmod_u16u16u16u16_skip
+    blo .__divmod_u16u16u16u16_skip
     subd 2,s
     inc 5,s
-__divmod_u16u16u16u16_skip:
+.__divmod_u16u16u16u16_skip:
     dec ,s
-    bne __divmod_u16u16u16u16_loop
+    bne .__divmod_u16u16u16u16_loop
     std 2,s
     leas 1,s
     puls pc,x,d,cc