diff --git a/src/version.cmake b/src/version.cmake
index 40243c0186..090ca690b7 100644
--- a/src/version.cmake
+++ b/src/version.cmake
@@ -12,7 +12,7 @@ else()
 	    set(VERSIONTAG "${COMMIT}")
 	else()
 		message(STATUS "The most recent tag was at ${TAGGEDCOMMIT}")
-		if(COMMIT MATCHES TAGGEDCOMMIT)
+		if(${COMMIT} MATCHES ${TAGGEDCOMMIT})
 			message(STATUS "You are building a tagged release")
 		    set(VERSIONTAG "release")
 		else()