diff --git a/src/reader/spirv/function.cc b/src/reader/spirv/function.cc
index 92f83e5..0e88128 100644
--- a/src/reader/spirv/function.cc
+++ b/src/reader/spirv/function.cc
@@ -212,9 +212,9 @@
     case SpvOpAll:
       return "all";
     case SpvOpIsNan:
-      return "is_nan";
+      return "isNan";
     case SpvOpIsInf:
-      return "is_inf";
+      return "isInf";
     default:
       break;
   }
diff --git a/src/reader/spirv/function_logical_test.cc b/src/reader/spirv/function_logical_test.cc
index 355c223..e5171cf 100644
--- a/src/reader/spirv/function_logical_test.cc
+++ b/src/reader/spirv/function_logical_test.cc
@@ -1380,7 +1380,7 @@
     __bool
     {
       Call[not set]{
-        Identifier[not set]{is_nan}
+        Identifier[not set]{isNan}
         (
           ScalarConstructor[not set]{50.000000}
         )
@@ -1410,7 +1410,7 @@
     __vec_2__bool
     {
       Call[not set]{
-        Identifier[not set]{is_nan}
+        Identifier[not set]{isNan}
         (
           TypeConstructor[not set]{
             __vec_2__f32
@@ -1444,7 +1444,7 @@
     __bool
     {
       Call[not set]{
-        Identifier[not set]{is_inf}
+        Identifier[not set]{isInf}
         (
           ScalarConstructor[not set]{50.000000}
         )
@@ -1474,7 +1474,7 @@
     __vec_2__bool
     {
       Call[not set]{
-        Identifier[not set]{is_inf}
+        Identifier[not set]{isInf}
         (
           TypeConstructor[not set]{
             __vec_2__f32