diff --git a/app/gegl/gimp-babl.c b/app/gegl/gimp-babl.c
index 2639969307..f03880331b 100644
--- a/app/gegl/gimp-babl.c
+++ b/app/gegl/gimp-babl.c
@@ -820,7 +820,7 @@ gimp_babl_is_valid (GimpImageBaseType base_type,
   g_return_val_if_reached (FALSE);
 }
 
-GimpComponentType
+gboolean
 gimp_babl_is_bounded (GimpPrecision precision)
 {
   switch (gimp_babl_component_type (precision))
diff --git a/app/gegl/gimp-babl.h b/app/gegl/gimp-babl.h
index 9393ff3076..cdf59256f3 100644
--- a/app/gegl/gimp-babl.h
+++ b/app/gegl/gimp-babl.h
@@ -42,7 +42,7 @@ GimpPrecision       gimp_babl_precision                    (GimpComponentType
 
 gboolean            gimp_babl_is_valid                     (GimpImageBaseType   base_type,
                                                             GimpPrecision       precision);
-GimpComponentType   gimp_babl_is_bounded                   (GimpPrecision       precision);
+gboolean            gimp_babl_is_bounded                   (GimpPrecision       precision);
 
 const Babl        * gimp_babl_format                       (GimpImageBaseType   base_type,
                                                             GimpPrecision       precision,