diff --git a/src/allotropy/parsers/moldev_softmax_pro/softmax_pro_structure.py b/src/allotropy/parsers/moldev_softmax_pro/softmax_pro_structure.py
index 64cb583a6..16cf476c2 100644
--- a/src/allotropy/parsers/moldev_softmax_pro/softmax_pro_structure.py
+++ b/src/allotropy/parsers/moldev_softmax_pro/softmax_pro_structure.py
@@ -34,7 +34,7 @@
     try_non_nan_float_or_none,
 )
 
-BLOCKS_LINE_REGEX = r"^##BLOCKS=\s*(\d+)$"
+BLOCKS_LINE_REGEX = r"^##BLOCKS=\s*(\d+)\s*$"
 END_LINE_REGEX = "~End"
 EXPORT_VERSION = "1.3"
 VALID_NAN_VALUES = ("Masked", "Range?", "Error")
diff --git a/tests/parsers/moldev_softmax_pro/testdata/partial_plate.txt b/tests/parsers/moldev_softmax_pro/testdata/partial_plate.txt
index 06d20c501..ab8f195dd 100644
--- a/tests/parsers/moldev_softmax_pro/testdata/partial_plate.txt
+++ b/tests/parsers/moldev_softmax_pro/testdata/partial_plate.txt
@@ -1,4 +1,4 @@
-##BLOCKS= 1
+##BLOCKS= 1 
 Plate:	Plate1	1.3	PlateFormat	Spectrum	Absorbance	Raw	FALSE	21			525	565	2			1	16	384	1	16
 	Temperature(¡C)	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24
 525	26.2	0.0994	0.0964	0.0967	0.0972	0.095	0.0947	0.0932	0.0936	0.0958	0.0969	0.099	0.1037	0.1302	0.1248	0.1008	0.1006