diff --git a/auto/bin/update_ext.sh b/auto/bin/update_ext.sh
index 2f38577..111f6f1 100755
--- a/auto/bin/update_ext.sh
+++ b/auto/bin/update_ext.sh
@@ -428,6 +428,13 @@ EOT
     grep -v 'GL_COMPRESSED_RGBA_S3TC_DXT1_EXT' $1/GL_EXT_texture_compression_dxt1 > tmp
     mv tmp $1/GL_EXT_texture_compression_dxt1
 
+# Append GLfixed to GL_ARB_ES2_compatibility
+# Probably ought to be explicitly mentioned in the spec language
+
+    cat >> $1/GL_ARB_ES2_compatibility <<EOT
+	typedef int GLfixed
+EOT
+
 # clean up
     rm -f $1/*.bak
 
diff --git a/auto/core/GL_REGAL_ES1_0_compatibility b/auto/core/GL_REGAL_ES1_0_compatibility
index 7b9f1fb..f7deaf6 100644
--- a/auto/core/GL_REGAL_ES1_0_compatibility
+++ b/auto/core/GL_REGAL_ES1_0_compatibility
@@ -1,8 +1,7 @@
 GL_REGAL_ES1_0_compatibility
 https://github.com/p3/regal/blob/master/doc/extensions/GL_REGAL_ES1_0_compatibility.txt
 GL_REGAL_ES1_0_compatibility
-	typedef GLuint GLfixed
-	typedef GLuint GLclampx
+	typedef int GLclampx
 	void glAlphaFuncx (GLenum func, GLclampx ref)
 	void glClearColorx (GLclampx red, GLclampx green, GLclampx blue, GLclampx alpha)
 	void glClearDepthx (GLclampx depth)