2 files changed, 1 insertions, 2 deletions
diff --git a/lib.c b/lib.c
index 236d58fc..e4bb639e 100644
--- a/lib.c
+++ b/lib.c
@@ -335,7 +335,7 @@ static char **handle_switch_D(char *arg, char **next)
 		c = *arg;
 		if (!c)
 			break;
-		if (isspace((unsigned char)c) || c == '=') {
+		if (c == '=') {
 			*arg = '\0';
 			value = arg + 1;
 			break;
diff --git a/validation/preprocessor/cli-D-space.c b/validation/preprocessor/cli-D-space.c
index d104d66d..8343bf1a 100644
--- a/validation/preprocessor/cli-D-space.c
+++ b/validation/preprocessor/cli-D-space.c
@@ -2,7 +2,6 @@ M(0,1)
 /*
  * check-name: cli: allow spaces in macros
  * check-command: sparse -E '-DM(X, Y)=a' $file
- * check-known-to-fail
  *
  * check-output-start