diff --git a/src/int_to_string.asm b/src/int_to_string.asm
index 567c609..db5b197 100644
--- a/src/int_to_string.asm
+++ b/src/int_to_string.asm
@@ -184,7 +184,7 @@ jl dec_small
 ; Utilizes double dabble
 ; r4, r5 are loop counters
 ;
-; for( r4 = 24 ; r4 >= 0 ; r4-- )
+; for( r4 = 24 ; r4 > 0 ; r4-- )
 ;   for( r5 = r4 ; r5 <= 28 ; r5+= 4 )
 ;     if( ((r1 >> r5) & 0xF) >= 5 )
 ;       r1 += 3 << r5
@@ -203,7 +203,7 @@ add r1, r1, flags
 dec_small_dabble_noinc:
 add r5, r5, 4
 cmp r5, 28
-jl dec_small_dabble_inner
+jle dec_small_dabble_inner
 sub r4, r4, 1
 cmp r4, zr
 jg dec_small_dabble_outer
diff --git a/tests/int_to_string_test.asm b/tests/int_to_string_test.asm
index ecac19b..786a6f3 100644
--- a/tests/int_to_string_test.asm
+++ b/tests/int_to_string_test.asm
@@ -55,7 +55,8 @@ tests:
 @0x20280 U32 0          U8 10 "0\0"
 @0x202c0 U32 42069      U8 10 "42069\0"
 @0x20300 U32 12345678   U8 10 "12345678\0"
-@0x20340
+@0x20340 U32 99999999   U8 10 "99999999\0"
+@0x20380
 end_of_tests:
 scratch: U1024 0