diff --git a/assembler/parse.go b/assembler/parse.go
index 329ed3b..ae938c0 100644
--- a/assembler/parse.go
+++ b/assembler/parse.go
@@ -6,8 +6,8 @@ type Program struct {
 	Functions []*Function `yaml:"functions"`
 }
 
-type Function []*Operation
-type Operation []string
+type Function []*Instruction
+type Instruction []string
 
 func NewProgramFromBytes(in []byte) (*Program, error) {
 	prog := &Program{}