diff --git a/src/basic/math/b8d7.normal_FAC1.jmp.s b/src/basic/math/b8d7.normal_FAC1.jmp.s
index be867799..746e9bb5 100644
--- a/src/basic/math/b8d7.normal_FAC1.jmp.s
+++ b/src/basic/math/b8d7.normal_FAC1.jmp.s
@@ -5,4 +5,5 @@
 
 ; Just a compatibility jump - our routine is longer than original one
 
-	jmp normal_FAC1
+normal_FAC1:
+	jmp normal_FAC1_impl
diff --git a/src/basic/math/normal_FAC1.s b/src/basic/math/normal_FAC1.s
index 64d8f938..3305e004 100644
--- a/src/basic/math/normal_FAC1.s
+++ b/src/basic/math/normal_FAC1.s
@@ -13,7 +13,7 @@
 
 ; XXX test this
 
-normal_FAC1:
+normal_FAC1_impl:
 
 	lda FAC1_exponent
 	beq normal_FAC1_end                     ; branch if our float is 0