diff --git a/exercises/practice/protein-translation/.meta/ProteinTranslation.res b/exercises/practice/protein-translation/.meta/ProteinTranslation.res
index 9bdf60c..9861fd7 100644
--- a/exercises/practice/protein-translation/.meta/ProteinTranslation.res
+++ b/exercises/practice/protein-translation/.meta/ProteinTranslation.res
@@ -1,4 +1,4 @@
-type codons =
+type aminoAcids =
   | Methionine
   | Phenylalanine
   | Leucine
diff --git a/exercises/practice/protein-translation/.meta/ProteinTranslation.resi b/exercises/practice/protein-translation/.meta/ProteinTranslation.resi
index a5cff46..d67f37e 100644
--- a/exercises/practice/protein-translation/.meta/ProteinTranslation.resi
+++ b/exercises/practice/protein-translation/.meta/ProteinTranslation.resi
@@ -1,4 +1,4 @@
-type codons =
+type aminoAcids =
   | Methionine
   | Phenylalanine
   | Leucine
@@ -8,4 +8,4 @@ type codons =
   | Tryptophan
   | STOP
 
-let proteins: string => option<array<codons>>
+let proteins: string => option<array<aminoAcids>>
diff --git a/exercises/practice/protein-translation/src/ProteinTranslation.resi b/exercises/practice/protein-translation/src/ProteinTranslation.resi
index a5cff46..d67f37e 100644
--- a/exercises/practice/protein-translation/src/ProteinTranslation.resi
+++ b/exercises/practice/protein-translation/src/ProteinTranslation.resi
@@ -1,4 +1,4 @@
-type codons =
+type aminoAcids =
   | Methionine
   | Phenylalanine
   | Leucine
@@ -8,4 +8,4 @@ type codons =
   | Tryptophan
   | STOP
 
-let proteins: string => option<array<codons>>
+let proteins: string => option<array<aminoAcids>>