diff --git a/src/include/ngspice/sharedspice.h b/src/include/ngspice/sharedspice.h
index 3cf85bbd9..00c2eabbf 100644
--- a/src/include/ngspice/sharedspice.h
+++ b/src/include/ngspice/sharedspice.h
@@ -88,8 +88,8 @@ request to the caller or an request for exiting upon error,
 done by callback function ngexit().
 */
 
-#ifndef PACKAGE_VERSION
-#define PACKAGE_VERSION "34+"
+#ifndef NGSPICE_PACKAGE_VERSION
+#define NGSPICE_PACKAGE_VERSION "34+"
 #endif
 
 #ifndef NGSPICE_DLL_H