diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c
index 4274567..6851779 100644
--- a/drivers/acpi/acpica/rscalc.c
+++ b/drivers/acpi/acpica/rscalc.c
@@ -601,7 +601,7 @@
 	/*
 	 * Calculate the size of the return buffer.
 	 * The base size is the number of elements * the sizes of the
-	 * structures.  Additional space for the strings is added below.
+	 * structures. Additional space for the strings is added below.
 	 * The minus one is to subtract the size of the u8 Source[1]
 	 * member because it is added below.
 	 *