diff --git a/src/lisp/Config.sparc_common b/src/lisp/Config.sparc_common
index 3b07c14a2aec6c2b512eda85f89150e91a7d84c1..16f99fb7098503c32b492e21c65d1e74153d5549 100644
--- a/src/lisp/Config.sparc_common
+++ b/src/lisp/Config.sparc_common
@@ -25,6 +25,8 @@ endif
 ifdef FEATURE_GENCGC
 GENCGC = -DGENCGC
 GC_SRC = gencgc.c
+else
+GC_SRC = gc.c
 endif
 
 # Enable support for SSE2.  If FEATURE_X87 is set, we want SSE2