diff --git a/src/Makefile.am b/src/Makefile.am
index 9c6e3c6..30d8ac3 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -24,7 +24,7 @@ taglib_policy_configs = $(POLICIES:.dll=.config)
 taglib_policy_configs_in = $(POLICIES:.dll=.config.in)
 
 $(ASSEMBLY): $(TAGLIB_CSFILES) $(taglib_generated_sources) taglib-sharp.snk
-	$(CSC) /target:library $(LIBFLAGS) $(DOCFLAGS) /define:SIGN /out:$@ $(TAGLIB_CSFILES) $(taglib_generated_sources)
+	$(CSC) /target:library $(LIBFLAGS) $(DOCFLAGS) /define:SIGN /keyfile:taglib-sharp.snk /out:$@ $(TAGLIB_CSFILES) $(taglib_generated_sources)
 
 policy.%.$(ASSEMBLY_NAME).dll: policy.%.$(ASSEMBLY_NAME).config
 	$(AL) /link:$< /out:$@ /keyfile:taglib-sharp.snk