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-rw-r--r--erts/emulator/beam/erl_bits.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/erts/emulator/beam/erl_bits.h b/erts/emulator/beam/erl_bits.h
index b9d141d585..a3816fa820 100644
--- a/erts/emulator/beam/erl_bits.h
+++ b/erts/emulator/beam/erl_bits.h
@@ -111,7 +111,7 @@ typedef struct erl_bin_match_struct{
#define copy_binary_to_buffer(DstBuffer, DstBufOffset, SrcBuffer, SrcBufferOffset, NumBits) \
do { \
if (BIT_OFFSET(DstBufOffset) == 0 && (SrcBufferOffset == 0) && \
- (BIT_OFFSET(NumBits)==0)) { \
+ (BIT_OFFSET(NumBits)==0) && (NumBits != 0)) { \
sys_memcpy(DstBuffer+BYTE_OFFSET(DstBufOffset), \
SrcBuffer, NBYTES(NumBits)); \
} else { \