diff --git a/graphviz-addons.changes b/graphviz-addons.changes
index 6984f65..1ba05b9 100644
--- a/graphviz-addons.changes
+++ b/graphviz-addons.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Fri Nov 30 07:34:24 UTC 2018 - jbrielmaier@suse.de
+
+- use pkg-config with correct parameter, reported by Werner Fink 
+
 -------------------------------------------------------------------
 Thu Nov 29 10:21:10 UTC 2018 - jbrielmaier@suse.de
 
diff --git a/graphviz-addons.spec b/graphviz-addons.spec
index 16452e4..d65717d 100644
--- a/graphviz-addons.spec
+++ b/graphviz-addons.spec
@@ -309,7 +309,8 @@ programs that use the graphviz libraries including man3 pages.
 %patch6
 %patch7
 %patch8
-if pkgconfig --version-atleast=2.2 guile-2.2; then
+# pkg-config returns 0 (TRUE) when guile-2.2 is present
+if pkg-config --atleast-version=2.2 guile-2.2; then
 sed "s/guile-2.0/guile-2.2/" -i configure.ac
 fi
 
diff --git a/graphviz.changes b/graphviz.changes
index 6984f65..1ba05b9 100644
--- a/graphviz.changes
+++ b/graphviz.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Fri Nov 30 07:34:24 UTC 2018 - jbrielmaier@suse.de
+
+- use pkg-config with correct parameter, reported by Werner Fink 
+
 -------------------------------------------------------------------
 Thu Nov 29 10:21:10 UTC 2018 - jbrielmaier@suse.de
 
diff --git a/graphviz.spec b/graphviz.spec
index bd8b28e..e46563c 100644
--- a/graphviz.spec
+++ b/graphviz.spec
@@ -309,7 +309,8 @@ programs that use the graphviz libraries including man3 pages.
 %patch6
 %patch7
 %patch8
-if pkgconfig --version-atleast=2.2 guile-2.2; then
+# pkg-config returns 0 (TRUE) when guile-2.2 is present
+if pkg-config --atleast-version=2.2 guile-2.2; then
 sed "s/guile-2.0/guile-2.2/" -i configure.ac
 fi