diff --git a/ground/openpilotgcs/src/libs/qwt/src/src.pro b/ground/openpilotgcs/src/libs/qwt/src/src.pro
index 6123541e3..fcdf13f5f 100644
--- a/ground/openpilotgcs/src/libs/qwt/src/src.pro
+++ b/ground/openpilotgcs/src/libs/qwt/src/src.pro
@@ -19,8 +19,6 @@ include( $${QWT_ROOT}/qwtconfig.pri )
 # include( $${QWT_ROOT}/qwtbuild.pri )
 # include( $${QWT_ROOT}/qwtfunctions.pri )
 
-include(../../../openpilotgcslibrary.pri)
-
 # QWT_OUT_ROOT = $${OUT_PWD}/..
 
 TEMPLATE          = lib
@@ -31,6 +29,12 @@ DEFINES           += QWT_LIBRARY
 
 # DESTDIR           = $${QWT_OUT_ROOT}/lib
 
+# NOTE: The include below must come AFTER the TARGET is
+# defined.  Otherwise the debug version of the library
+# will not have the 'd' suffix it needs.
+#
+include(../../../openpilotgcslibrary.pri)
+
 contains(QWT_CONFIG, QwtDll) {
 
     CONFIG += dll