diff --git a/prism_compile.c b/prism_compile.c
index a159267da3..ff487ddb23 100644
--- a/prism_compile.c
+++ b/prism_compile.c
@@ -3,7 +3,7 @@
 /**
  * This compiler defines its own concept of the location of a node. We do this
  * because we want to pair line information with node identifier so that we can
- * have reproducable parses.
+ * have reproducible parses.
  */
 typedef struct {
     /** This is the line number of a node. */