diff --git a/src/Unity.Mathematics.CodeGen~/VectorGenerator.cs b/src/Unity.Mathematics.CodeGen~/VectorGenerator.cs
index a6c203b3..8a0e97e1 100644
--- a/src/Unity.Mathematics.CodeGen~/VectorGenerator.cs
+++ b/src/Unity.Mathematics.CodeGen~/VectorGenerator.cs
@@ -1482,7 +1482,7 @@ public void GenerateFastInverseFunction(StringBuilder str)
             {0}4 c2 = m.c2;
             {0}4 pos = m.c3;
 
-            {0}4 zero = {0}4(0);
+            {0}4 zero = {0}4({1});
 
             {0}4 t0 = unpacklo(c0, c2);
             {0}4 t1 = unpacklo(c1, zero);
@@ -1494,7 +1494,7 @@ public void GenerateFastInverseFunction(StringBuilder str)
             {0}4 r2 = unpacklo(t2, t3);
 
             pos = -(r0 * pos.x + r1 * pos.y + r2 * pos.z);
-            pos.w = 1.0f;
+            pos.w = {2};
 
             return {0}4x4(r0, r1, r2, pos);
         }}
diff --git a/src/Unity.Mathematics/double4x4.gen.cs b/src/Unity.Mathematics/double4x4.gen.cs
index 1380a77f..620b448f 100644
--- a/src/Unity.Mathematics/double4x4.gen.cs
+++ b/src/Unity.Mathematics/double4x4.gen.cs
@@ -757,7 +757,7 @@ public static double4x4 fastinverse(double4x4 m)
             double4 c2 = m.c2;
             double4 pos = m.c3;
 
-            double4 zero = double4(0);
+            double4 zero = double4(0.0);
 
             double4 t0 = unpacklo(c0, c2);
             double4 t1 = unpacklo(c1, zero);
@@ -769,7 +769,7 @@ public static double4x4 fastinverse(double4x4 m)
             double4 r2 = unpacklo(t2, t3);
 
             pos = -(r0 * pos.x + r1 * pos.y + r2 * pos.z);
-            pos.w = 1.0f;
+            pos.w = 1.0;
 
             return double4x4(r0, r1, r2, pos);
         }
diff --git a/src/Unity.Mathematics/float4x4.gen.cs b/src/Unity.Mathematics/float4x4.gen.cs
index 061cc0c5..8846c991 100644
--- a/src/Unity.Mathematics/float4x4.gen.cs
+++ b/src/Unity.Mathematics/float4x4.gen.cs
@@ -757,7 +757,7 @@ public static float4x4 fastinverse(float4x4 m)
             float4 c2 = m.c2;
             float4 pos = m.c3;
 
-            float4 zero = float4(0);
+            float4 zero = float4(0.0f);
 
             float4 t0 = unpacklo(c0, c2);
             float4 t1 = unpacklo(c1, zero);