diff --git a/group/common.mmh b/group/common.mmh
index 2f816b1..1b4576d 100644
--- a/group/common.mmh
+++ b/group/common.mmh
@@ -23,7 +23,7 @@ OPTION_REPLACE ARMCC -O2 -O3
 ALWAYS_BUILD_AS_ARM
 #endif
 
-#ifdef __SYMBIAN_3
+#ifdef SYMBIAN_3
 SYSTEMINCLUDE /epoc32/include/stdapis/stlportv5
 STDCPP
 MACRO RW_GL3
diff --git a/group/librw_gles1.mmp b/group/librw_gles1.mmp
index 1564461..4d2e805 100644
--- a/group/librw_gles1.mmp
+++ b/group/librw_gles1.mmp
@@ -1,4 +1,3 @@
-#undef __SYMBIAN3
-#define __S60V3
+#undef SYMBIAN3
 TARGET librw_gles1.lib
 #include "librw.mmh"
\ No newline at end of file
diff --git a/group/librw_gles2.mmp b/group/librw_gles2.mmp
index 0f854c5..d33a32e 100644
--- a/group/librw_gles2.mmp
+++ b/group/librw_gles2.mmp
@@ -1,4 +1,3 @@
-#undef __S60V3
-#define __SYMBIAN_3
+#define SYMBIAN_3
 TARGET librw_gles2.lib
 #include "librw.mmh"
\ No newline at end of file
diff --git a/group/re3_gles1.mmp b/group/re3_gles1.mmp
index 713d46e..bade9b7 100644
--- a/group/re3_gles1.mmp
+++ b/group/re3_gles1.mmp
@@ -1,5 +1,4 @@
-#undef __SYMBIAN_3
-#define __S60V3
+#undef SYMBIAN_3
 //TARGET re3_gles1.exe
 TARGET re3_gles1.exe
 LIBRARY libstdcpp.lib
diff --git a/group/re3_gles2.mmp b/group/re3_gles2.mmp
index ae7782a..5d2a0d0 100644
--- a/group/re3_gles2.mmp
+++ b/group/re3_gles2.mmp
@@ -1,5 +1,4 @@
-#undef __S60V3
-#define __SYMBIAN_3
+#define SYMBIAN_3
 TARGET re3.exe
 LIBRARY libstdcppv5.lib
 LIBRARY libglesv2.lib