diff --git a/meta/guile-2.0-uninstalled.pc.in b/meta/guile-2.0-uninstalled.pc.in
index 50d337fd3..6e687eabd 100644
--- a/meta/guile-2.0-uninstalled.pc.in
+++ b/meta/guile-2.0-uninstalled.pc.in
@@ -5,4 +5,4 @@ Name: GNU Guile (uninstalled)
 Description: GNU's Ubiquitous Intelligent Language for Extension (uninstalled)
 Version: @GUILE_VERSION@
 Libs: -L${builddir}/libguile -lguile @GUILE_LIBS@
-Cflags: -I${srcdir} -I${builddir} @GUILE_CFLAGS@
+Cflags: -I${srcdir} -I${builddir} @GUILE_CFLAGS@ @BDW_GC_CFLAGS@
diff --git a/meta/guile-2.0.pc.in b/meta/guile-2.0.pc.in
index 1b43cbc5e..5cacaaa3e 100644
--- a/meta/guile-2.0.pc.in
+++ b/meta/guile-2.0.pc.in
@@ -13,4 +13,4 @@ Name: GNU Guile
 Description: GNU's Ubiquitous Intelligent Language for Extension
 Version: @GUILE_VERSION@
 Libs: -L${libdir} -lguile @GUILE_LIBS@
-Cflags: -I${includedir} @GUILE_CFLAGS@
+Cflags: -I${includedir} @GUILE_CFLAGS@ @BDW_GC_CFLAGS@