diff --git a/ChangeLog b/ChangeLog
index b7f7d18..8442cf0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -17,6 +17,11 @@ Changes in version 1.9.2
   * pck-update - Davide Madrisan:
     Action 6: fix for /lib/ld-linux.so.2 -> ld-2.14.1.so
 
+  * pck-update - Davide Madrisan:
+    Honour `%_specdir' and `%_sourcedir' when checking for syntax errors in the
+    specfiles by running `rpm -q --specfile --specedit ...'.
+    (Problem detected by Silvan Calarco).
+
 --------------------------------------------------------------------------------
 
 Changes in version 1.9.1
diff --git a/plugins/pck-update.in b/plugins/pck-update.in
index 07307ad..ba0951a 100644
--- a/plugins/pck-update.in
+++ b/plugins/pck-update.in
@@ -442,13 +442,17 @@ done)"
         local tmpspreprerr=$(mktemp -q -t $me.XXXXXXXX)
         [ $? -eq 0 ] || notify.error $"can't create temporary files"
         notify.debug "tmpspreprerr = \`${NOTE}$tmpspreprerr${NORM}'"
-        
-        notify.debug "running: \
-rpm -q $USER_RPMDEFINE_OPTS --specfile --specedit $SRPM_SPECFILE_WITH_PATH ..."
+
+        local rpmbuild_opts="\
+--define=\"%_specdir $spec_dir\" --define=\"%_sourcedir $source_dir\""
+
+        notify.debug "running: rpm -q $rpmbuild_opts $USER_RPMDEFINE_OPTS \
+--specfile --specedit $SRPM_SPECFILE_WITH_PATH ..."
 
         eval "\
-rpm -q $USER_RPMDEFINE_OPTS --specfile --specedit $SRPM_SPECFILE_WITH_PATH \
-           2> $tmpspreprerr >> $specfile_preprocessed"
+rpm -q $rpmbuild_opts $USER_RPMDEFINE_OPTS --specfile --specedit\
+       $SRPM_SPECFILE_WITH_PATH \
+       2> $tmpspreprerr >> $specfile_preprocessed"
         [ -s "$tmpspreprerr" ] &&
          { notify.error $"specfile has errors:""\n$(\
            while read line; do echo "   $line"; done < $tmpspreprerr)"; }