diff --git a/src/coord.hh b/src/coord.hh
index aae08ba9..252496d1 100644
--- a/src/coord.hh
+++ b/src/coord.hh
@@ -84,6 +84,11 @@ struct LineAndColumn
     {
         return line != other.line or column != other.column;
     }
+
+    friend size_t hash_value(const EffectiveType& val)
+    {
+        return hash_values(val.line, val.column);
+    }
 };
 
 struct ByteCoord : LineAndColumn<ByteCoord, LineCount, ByteCount>
@@ -93,11 +98,6 @@ struct ByteCoord : LineAndColumn<ByteCoord, LineCount, ByteCount>
         : LineAndColumn(line, column) {}
 };
 
-inline size_t hash_value(const ByteCoord& val)
-{
-    return hash_values(val.line, val.column);
-}
-
 struct CharCoord : LineAndColumn<CharCoord, LineCount, CharCount>
 {
     [[gnu::always_inline]]
@@ -105,11 +105,6 @@ struct CharCoord : LineAndColumn<CharCoord, LineCount, CharCount>
         : LineAndColumn(line, column) {}
 };
 
-inline size_t hash_value(const CharCoord& val)
-{
-    return hash_values(val.line, val.column);
-}
-
 struct ByteCoordAndTarget : ByteCoord
 {
     [[gnu::always_inline]]
diff --git a/src/units.hh b/src/units.hh
index 5091c324..945f7265 100644
--- a/src/units.hh
+++ b/src/units.hh
@@ -111,6 +111,9 @@ public:
     explicit constexpr operator ValueType() const { return m_value; }
     [[gnu::always_inline]]
     explicit constexpr operator bool() const { return m_value; }
+
+    friend size_t hash_value(RealType val) { return hash_value(val.m_value); }
+
 private:
     ValueType m_value;
 };
@@ -121,8 +124,6 @@ struct LineCount : public StronglyTypedNumber<LineCount, int>
     constexpr LineCount(int value = 0) : StronglyTypedNumber<LineCount>(value) {}
 };
 
-inline size_t hash_value(LineCount val) { return hash_value((int)val); }
-
 [[gnu::always_inline]]
 inline constexpr LineCount operator"" _line(unsigned long long int value)
 {
@@ -135,8 +136,6 @@ struct ByteCount : public StronglyTypedNumber<ByteCount, int>
     constexpr ByteCount(int value = 0) : StronglyTypedNumber<ByteCount>(value) {}
 };
 
-inline size_t hash_value(ByteCount val) { return hash_value((int)val); }
-
 [[gnu::always_inline]]
 inline constexpr ByteCount operator"" _byte(unsigned long long int value)
 {
@@ -155,8 +154,6 @@ inline constexpr CharCount operator"" _char(unsigned long long int value)
     return CharCount(value);
 }
 
-inline size_t hash_value(CharCount val) { return hash_value((int)val); }
-
 }
 
 #endif // units_hh_INCLUDED
diff --git a/src/value.hh b/src/value.hh
index 51318c2d..1a287b0b 100644
--- a/src/value.hh
+++ b/src/value.hh
@@ -76,8 +76,6 @@ struct ValueId : public StronglyTypedNumber<ValueId, int>
     }
 };
 
-inline size_t hash_value(ValueId val) { return hash_value((int)val); }
-
 using ValueMap = UnorderedMap<ValueId, Value, MemoryDomain::Values>;
 
 }