diff --git a/code/STEPFile.h b/code/STEPFile.h
index cc038faca..be77a2ec2 100644
--- a/code/STEPFile.h
+++ b/code/STEPFile.h
@@ -281,8 +281,8 @@ namespace STEP {
 		};
 
 		typedef PrimitiveDataType<int64_t>			INTEGER; 
-		typedef PrimitiveDataType<double>			REAL; 
-		typedef PrimitiveDataType<double>			NUMBER; 
+		typedef PrimitiveDataType<float>			REAL; 
+		typedef PrimitiveDataType<float>			NUMBER; 
 		typedef PrimitiveDataType<std::string>		STRING;