diff --git a/jsr-305.spec b/jsr-305.spec
index 8aa1797..c3c4646 100644
--- a/jsr-305.spec
+++ b/jsr-305.spec
@@ -32,6 +32,8 @@ Detection.
 %setup -q -n %{name}
 cp %{SOURCE1} NOTICE-CC-BY
 
+%pom_xpath_set "pom:plugin[pom:artifactId='maven-compiler-plugin']/pom:configuration/*" 1.6
+
 %mvn_file :ri %{name}
 %mvn_alias :ri com.google.code.findbugs:jsr305
 %mvn_package ":{proposedAnnotations,tcl}" __noinstall