diff --git a/make/aix/makefiles/adjust-mflags.sh b/make/aix/makefiles/adjust-mflags.sh
index df1aa625b7778ac44da39940f36888ab19701858..6c06819fb74a2c249f03654e46848de5ec51f51a 100644
--- a/make/aix/makefiles/adjust-mflags.sh
+++ b/make/aix/makefiles/adjust-mflags.sh
@@ -1,6 +1,6 @@
 #! /bin/sh
 #
-# Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -64,7 +64,7 @@ MFLAGS=`
 	echo "$MFLAGS" \
 	| sed '
 		s/^-/ -/
-		s/ -\([^ 	][^ 	]*\)j/ -\1 -j/
+		s/ -\([^ 	I][^ 	I]*\)j/ -\1 -j/
 		s/ -j[0-9][0-9]*/ -j/
 		s/ -j\([^ 	]\)/ -j -\1/
 		s/ -j/ -j'${HOTSPOT_BUILD_JOBS:-${default_build_jobs}}'/
diff --git a/make/bsd/makefiles/adjust-mflags.sh b/make/bsd/makefiles/adjust-mflags.sh
index 484fa85e8bb9fba0bf90671eb1d0f4e0dc58dee7..97bc02db7f1b35567f2cb4ed11e10e31617a99b8 100644
--- a/make/bsd/makefiles/adjust-mflags.sh
+++ b/make/bsd/makefiles/adjust-mflags.sh
@@ -64,7 +64,7 @@ MFLAGS=`
 	echo "$MFLAGS" \
 	| sed '
 		s/^-/ -/
-		s/ -\([^ 	][^ 	]*\)j/ -\1 -j/
+		s/ -\([^ 	I][^ 	I]*\)j/ -\1 -j/
 		s/ -j[0-9][0-9]*/ -j/
 		s/ -j\([^ 	]\)/ -j -\1/
 		s/ -j/ -j'${HOTSPOT_BUILD_JOBS:-${default_build_jobs}}'/
diff --git a/make/linux/makefiles/adjust-mflags.sh b/make/linux/makefiles/adjust-mflags.sh
index 484fa85e8bb9fba0bf90671eb1d0f4e0dc58dee7..97bc02db7f1b35567f2cb4ed11e10e31617a99b8 100644
--- a/make/linux/makefiles/adjust-mflags.sh
+++ b/make/linux/makefiles/adjust-mflags.sh
@@ -64,7 +64,7 @@ MFLAGS=`
 	echo "$MFLAGS" \
 	| sed '
 		s/^-/ -/
-		s/ -\([^ 	][^ 	]*\)j/ -\1 -j/
+		s/ -\([^ 	I][^ 	I]*\)j/ -\1 -j/
 		s/ -j[0-9][0-9]*/ -j/
 		s/ -j\([^ 	]\)/ -j -\1/
 		s/ -j/ -j'${HOTSPOT_BUILD_JOBS:-${default_build_jobs}}'/
diff --git a/make/solaris/makefiles/adjust-mflags.sh b/make/solaris/makefiles/adjust-mflags.sh
index 484fa85e8bb9fba0bf90671eb1d0f4e0dc58dee7..97bc02db7f1b35567f2cb4ed11e10e31617a99b8 100644
--- a/make/solaris/makefiles/adjust-mflags.sh
+++ b/make/solaris/makefiles/adjust-mflags.sh
@@ -64,7 +64,7 @@ MFLAGS=`
 	echo "$MFLAGS" \
 	| sed '
 		s/^-/ -/
-		s/ -\([^ 	][^ 	]*\)j/ -\1 -j/
+		s/ -\([^ 	I][^ 	I]*\)j/ -\1 -j/
 		s/ -j[0-9][0-9]*/ -j/
 		s/ -j\([^ 	]\)/ -j -\1/
 		s/ -j/ -j'${HOTSPOT_BUILD_JOBS:-${default_build_jobs}}'/