diff --git a/cde/lib/tt/lib/mp/Imakefile b/cde/lib/tt/lib/mp/Imakefile
index e4f4adf2f..870ee6e73 100644
--- a/cde/lib/tt/lib/mp/Imakefile
+++ b/cde/lib/tt/lib/mp/Imakefile
@@ -24,6 +24,9 @@ ISAM_INCLUDES = -I../../mini_isam
 CXXEXTRA_DEFINES = -DCOMPAT_43
 #endif
 
+#if defined(LinuxDistribution)
+CXXEXTRA_DEFINES = -fpermissive
+#endif
 
 /*** NOTE!
  *** Every time a .o is added below it needs to be added to