diff --git a/inc/ext/DEBIAN/postinst b/inc/ext/DEBIAN/postinst
index f932f496ac..1baa4cb7ce 100644
--- a/inc/ext/DEBIAN/postinst
+++ b/inc/ext/DEBIAN/postinst
@@ -6,12 +6,12 @@ do_pkgconfig() {
    if [ ! -d /usr/lib/pkgconfig ] ; then mkdir -p /usr/lib/pkgconfig; fi
    cat > /usr/lib/pkgconfig/roctracer-proto.pc << EOF
 prefix=/opt/rocm/roctracer
-includedir=${prefix}/include/ext
+includedir=\${prefix}/include/ext
 
 Name: roctracer-proto
 Version: 1.0.0
 Description: roctracer protocol
-Cflags: -I${includedir}
+Cflags: -I\${includedir}
 EOF
 }
 
diff --git a/inc/ext/RPM/rpm_post b/inc/ext/RPM/rpm_post
index ca6358605b..68451f138b 100644
--- a/inc/ext/RPM/rpm_post
+++ b/inc/ext/RPM/rpm_post
@@ -1,10 +1,10 @@
 if [ ! -d /usr/lib/pkgconfig ] ; then mkdir -p /usr/lib/pkgconfig; fi
 cat > /usr/lib/pkgconfig/roctracer-proto.pc << EOF
 prefix=/opt/rocm/roctracer
-includedir=${prefix}/include/ext
+includedir=\${prefix}/include/ext
 
 Name: roctracer-proto
 Version: 1.0.0
 Description: roctracer protocol
-Cflags: -I${includedir}
+Cflags: -I\${includedir}
 EOF