diff --git a/pkgconfig/gstreamer-uninstalled.pc.in b/pkgconfig/gstreamer-uninstalled.pc.in
index 674b30db55..fa518cd033 100644
--- a/pkgconfig/gstreamer-uninstalled.pc.in
+++ b/pkgconfig/gstreamer-uninstalled.pc.in
@@ -11,4 +11,4 @@ Description: Streaming media framework, Not Installed
 Version: @VERSION@
 Requires: @GST_PKG_DEPS@@LIBXML_PKG@
 Libs: ${libdir}/gst/libgstreamer-@GST_MAJORMINOR@.la
-Cflags: -I${includedir}  -I@srcdir@/.. -I${includedir}/libs  -I@srcdir@/../libs -DG_THREADS_MANDATORY
+Cflags: -I${includedir}  -I@srcdir@/.. -I${includedir}/libs  -I@srcdir@/../libs
diff --git a/pkgconfig/gstreamer.pc.in b/pkgconfig/gstreamer.pc.in
index 3cbe181f6b..32fd81182d 100644
--- a/pkgconfig/gstreamer.pc.in
+++ b/pkgconfig/gstreamer.pc.in
@@ -10,4 +10,4 @@ Description: Streaming media framework
 Requires: @GST_PKG_DEPS@@LIBXML_PKG@
 Version: @VERSION@
 Libs: -L${libdir} -lgstreamer-@GST_MAJORMINOR@
-Cflags: -I${includedir} -DG_THREADS_MANDATORY
+Cflags: -I${includedir}