diff --git a/codeGenCpu6502/src/prog8/codegen/cpu6502/ExpressionsAsmGen.kt b/codeGenCpu6502/src/prog8/codegen/cpu6502/ExpressionsAsmGen.kt
index 0a10b73cc..c2c02265d 100644
--- a/codeGenCpu6502/src/prog8/codegen/cpu6502/ExpressionsAsmGen.kt
+++ b/codeGenCpu6502/src/prog8/codegen/cpu6502/ExpressionsAsmGen.kt
@@ -710,7 +710,7 @@ internal class ExpressionsAsmGen(private val program: PtProgram,
             "<=" -> {
                 when(dt) {
                     DataType.UBYTE -> asmgen.out("  jsr  prog8_lib.equalzero_b")
-                    DataType.BYTE -> asmgen.out("  jsr  prog8_lib.lessequalzeros_b")
+                    DataType.BYTE -> asmgen.out("  jsr  prog8_lib.lessequalzero_sb")
                     DataType.UWORD -> asmgen.out("  jsr  prog8_lib.equalzero_w")
                     DataType.WORD -> asmgen.out("  jsr  prog8_lib.lessequalzero_sw")
                     DataType.FLOAT -> asmgen.out("  jsr  floats.lessequal_zero")