diff --git a/pxr/imaging/hgiInterop/metal.mm b/pxr/imaging/hgiInterop/metal.mm
index 97ae0adeba..643858d801 100644
--- a/pxr/imaging/hgiInterop/metal.mm
+++ b/pxr/imaging/hgiInterop/metal.mm
@@ -62,18 +62,15 @@
     // Determine if GLSL version 140 is supported by this context.
     //  We'll use this info to generate a GLSL shader source string
     //  with the proper version preprocessor string prepended
-    float  glLanguageVersion;
-    
-    sscanf((char *)glGetString(GL_SHADING_LANGUAGE_VERSION), "%f",
-        &glLanguageVersion);
+    int majorVersion = 0, minorVersion = 0;
+    sscanf((char *)glGetString(GL_SHADING_LANGUAGE_VERSION), "%d.%d",
+        &majorVersion, &minorVersion);
     GLchar const * const versionTemplate = "#version %d\n";
     
     // GL_SHADING_LANGUAGE_VERSION returns the version standard version form
     //  with decimals, but the GLSL version preprocessor directive simply
     //  uses integers (thus 1.10 should 110 and 1.40 should be 140, etc.)
-    //  We multiply the floating point number by 100 to get a proper
-    //  number for the GLSL preprocessor directive
-    GLuint version = 100 * glLanguageVersion;
+    GLuint version = 100 * majorVersion + minorVersion;
     
     // Prepend our vertex shader source string with the supported GLSL version
     // so the shader will work on ES, Legacy, and OpenGL 3.2 Core Profile